SONY CORPORATION OF AMERICA ET AL. v. UNIVERSAL CITYSTUDIOS, INC., ET AL.
No. 81-1687
SUPREME COURT OF THE UNITED STATES
464 U.S. 417
January 18, 1983, Argued
January 17, 1984, Decided

SUBSEQUENT HISTORY:
Reargued October 3, 1983. Petition for Rehearing Denied March 19, 1984.
PRIOR HISTORY:CERTIORARI TO THE UNITED STATES COURT OF APPEALS FOR THE NINTH CIRCUIT.
DISPOSITION:
659 F.2d 963, reversed.
COUNSEL:
Dean C. Dunlavey reargued the cause for petitioners. With him on the briefs were Donald
E. Sloan and Marshall Rutter.
Stephen A. Kroft reargued the cause for respondents. With him on the brief was Sondra E.
Berchin. ** Briefs of amici curiae urging reversal were filed for the Virginia Citizens' Consumer
Council, Inc., et al. by William A. Dobrovir; for the American Library Association by
Newton N. Minow; for the Consumer Electronics Group by J. Edward Day; for the
Educators Ad Hoc Committee on Copyright Law by Michael H. Cardozo, August W.
Steinhilber, and Gwendolyn H. Gregory; for General Electric Co. et al. by Alfred B.
Engelberg, Morton Amster, Jesse Rothstein, and Joel E. Lutzker; for Hitachi, Ltd., et al.
by John W. Armagost and Craig B. Jorgensen; for McCann-Erickson, Inc., et al. by John
A. Donovan, A. Howard Matz, and David Fleischer; for Minnesota Mining andManufacturing Co. et al. by Sidney A. Diamond and Grier Curran Raclin; for the National
Retail Merchants Association by Peter R. Stern, Theodore S. Steingut, and Robert A.
Weiner; for Sanyo Electric, Inc., by Anthony Liebig; for Sears, Roebuck and Co. by Max
L. Gillam and Mary E. Woytek; for TDK Electronics Co., Ltd., by Ko-Yung Tung and Adam
Yarmolinsky; for Toshiba Corp. et al. by Donald J. Zoeller and Herve Gouraige; for Pfizer
Inc. by Steven C. Kany; and for Viare Publishing by Peter F. Marvin.

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Briefs of amici curiae urging affirmance were filed for the Association of American
Publishers, Inc., et al. by Charles H. Lieb and Jon A. Baumgarten; for the Authors Leagueof America, Inc., by Irwin Karp; for CBS Inc. by Lloyd N. Cutler, Louis R. Cohen, andGeorge Vradenburg III; for Creators and Distributors of Programs by Stuart Robinowitz
and Andrew J. Peck; for the International Alliance of Theatrical Stage Employees andMoving Picture Machine Operators of the United States and Canada, AFL-CIO, by Leo
Geffner; for the Motion Picture Association of America, Inc., by Richard M. Cooper, Ellen
S. Huvelle, and William Nix; for the National Music Publishers' Association, Inc., by Jon A.
Baumgarten; for the Recording Industry Association of America, Inc., by James F.
Fitzpatrick, Cary H. Sherman, and Ernest S. Meyers; for Volunteer Lawyers for the Arts,
Inc., by I. Fred Koenigsberg; and for the Writers Guild of America, West, Inc., et al. byPaul P. Selvin, Jerome B. Lurie, and Paul S. Berger.
Briefs of amici curiae were filed for the State of Missouri et al. by John Ashcroft,
Attorney General of Missouri, and by the Attorneys General for their respective States asfollows: Charles A. Graddick of Alabama, John Steven Clark of Arkansas, Michael J.
Bowers of Georgia, Tany S. Hong of Hawaii, Tyrone C. Fahner of Illinois, Thomas J. Millerof Iowa, William J. Guste, Jr., of Louisiana, William A. Allain of Mississippi, Michael T.
Greely of Montana, Rufus L. Edmisten of North Carolina, William J. Brown of Ohio, Jan
Eric Cartwright of Oklahoma, Dennis J. Roberts II of Rhode Island, John J. Easton of
Vermont, Gerald L. Baliles of Virginia, and Bronson C. La Follette of Wisconsin; and for
the Committee on Copyright and Literary Property of the Association of the Bar of theCity of New York by Michael S. Oberman and David H. Marks.
JUDGES:STEVENS, J., delivered the opinion of the Court in which BURGER, C. J., and BRENNAN,
WHITE, and O'CONNOR, JJ., joined. BLACKMUN, J., filed a dissenting opinion in which
MARSHALL, POWELL, and REHNQUIST, JJ., joined, post, p. 457.
OPINIONBY:STEVENSOPINION:JUSTICE STEVENS delivered the opinion of the Court.
Petitioners manufacture and sell home video tape recorders. Respondents own the copyrights
on some of the television programs that are broadcast on the public airwaves. Some membersof the general public use video tape recorders sold by petitioners to record some of thesebroadcasts, as well as a large number of other broadcasts. The question presented is whether
the sale of petitioners' copying equipment to the general public violates any of the rights
conferred upon respondents by the Copyright Act.
Respondents commenced this copyright infringement action against petitioners in the
United States District Court for the Central District of California in 1976. Respondents allegedthat some individuals had used Betamax video tape recorders (VTR's) to record some of
respondents' copyrighted works which had been exhibited on commercially sponsored
television and contended that these individuals had thereby infringed respondents' copyrights.
Respondents further maintained that petitioners were liable for the copyright infringement
allegedly committed by Betamax consumers because of petitioners' marketing of the Betamax
VTR's. n1 Respondents sought no relief against any Betamax consumer. Instead, they sought2money damages and an equitable accounting of profits from petitioners, as well as an
injunction against the manufacture and marketing of Betamax VTR's.
n1 The respondents also asserted causes of action under state law and ß 43(a) of
the Trademark Act of 1946, 60 Stat. 441, 15 U. S. C. ß 1125(a). These claims are notbefore this Court.
After a lengthy trial, the District Court denied respondents all the relief they sought andentered judgment for petitioners. 480 F.Supp. 429 (1979). The United States Court of Appeals
for the Ninth Circuit reversed the District Court's judgment on respondents' copyright claim,
holding petitioners liable for contributory infringement and ordering the District Court tofashion appropriate relief. 659 F.2d 963 (1981). We granted certiorari, 457 U.S. 1116 (1982);
since we had not completed our study of the case last Term, we ordered reargument, 463 U.S.
1226 (1983). We now reverse.
An explanation of our rejection of respondents' unprecedented attempt to impose copyrightliability upon the distributors of copying equipment requires a quite detailed recitation of thefindings of the District Court. In summary, those findings reveal that the average member ofthe public uses a VTR principally to record a program he cannot view as it is being televised
and then to watch it once at a later time. This practice, known as "time-shifting," enlarges the
television viewing audience. For that reason, a significant amount of television programming
may be used in this manner without objection from the owners of the copyrights on the
programs. For the same reason, even the two respondents in this case, who do assert
objections to time-shifting in this litigation, were unable to prove that the practice has
impaired the commercial value of their copyrights or has created any likelihood of future harm.
Given these findings, there is no basis in the Copyright Act upon which respondents can holdpetitioners liable for distributing VTR's to the general public. The Court of Appeals' holdingthat respondents are entitled to enjoin the distribution of VTR's, to collect royalties on the saleof such equipment, or to obtain other relief, if affirmed, would enlarge the scope of
respondents' statutory monopolies to encompass control over an article of commerce that is
not the subject of copyright protection. Such an expansion of the copyright privilege is beyond
the limits of the grants authorized by Congress.
I
The two respondents in this action, Universal City Studios, Inc., and Walt Disney
Productions, produce and hold the copyrights on a substantial number of motion pictures andother audiovisual works. In the current marketplace, they can exploit their rights in theseworks in a number of ways: by authorizing theatrical exhibitions, by licensing limited showings
on cable and network television, by selling syndication rights for repeated airings on local
television stations, and by marketing programs on prerecorded videotapes or videodiscs.
Some works are suitable for exploitation through all of these avenues, while the market forother works is more limited.
Petitioner Sony manufactures millions of Betamax video tape recorders and markets thesedevices through numerous retail establishments, some of which are also petitioners in thisaction. n2 Sony's Betamax VTR is a mechanism consisting of three basic components: (1) atuner, which receives electromagnetic signals transmitted over the television band of the public
airwaves and separates them into audio and visual signals; (2) a recorder, which records suchsignals on a magnetic tape; and (3) an adapter, which converts the audio and visual signals on
the tape into a composite signal that can be received by a television set.

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n2 The four retailers are Carter Hawley Hales Stores, Inc., Associated Dry Goods
Corp., Federated Department Stores, Inc., and Henry's Camera Corp. The principal
defendants are Sony Corporation, the manufacturer of the equipment, and its wholly
owned subsidiary, Sony Corporation of America. The advertising agency of Doyle Dane
Bernback, Inc., also involved in marketing the Betamax, is also a petitioner. An
individual VTR user, William Griffiths, was named as a defendant in the District Court,
but respondents sought no relief against him. Griffiths is not a petitioner. For
convenience, we shall refer to petitioners collectively as Sony.
Several capabilities of the machine are noteworthy. The separate tuner in the Betamax
enables it to record a broadcast off one station while the television set is tuned to anotherchannel, permitting the viewer, for example, to watch two simultaneous news broadcasts bywatching one "live" and recording the other for later viewing. Tapes may be reused, andprograms that have been recorded may be erased either before or after viewing. A timer inthe Betamax can be used to activate and deactivate the equipment at predetermined times,
enabling an intended viewer to record programs that are transmitted when he or she is not at
home. Thus a person may watch a program at home in the evening even though it was
broadcast while the viewer was at work during the afternoon. The Betamax is also equippedwith a pause button and a fast-forward control. The pause button, when depressed,
deactivates the recorder until it is released, thus enabling a viewer to omit a commercial
advertisement from the recording, provided, of course, that the viewer is present when the
program is recorded. The fast-forward control enables the viewer of a previously recorded
program to run the tape rapidly when a segment he or she does not desire to see is being
played back on the television screen.
The respondents and Sony both conducted surveys of the way the Betamax machine wasused by several hundred owners during a sample period in 1978. Although there were somedifferences in the surveys, they both showed that the primary use of the machine for mostowners was "time-shifting" -- the practice of recording a program to view it once at a later
time, and thereafter erasing it. Time-shifting enables viewers to see programs they otherwise
would miss because they are not at home, are occupied with other tasks, or are viewing a
program on another station at the time of a broadcast that they desire to watch. Both surveys
also showed, however, that a substantial number of interviewees had accumulated libraries oftapes. n3 Sony's survey indicated that over 80% of the interviewees watched at least as much
regular television as they had before owning a Betamax. n4 Respondents offered no evidence
of decreased television viewing by Betamax owners. n5
n3 As evidence of how a VTR may be used, respondents offered the testimony ofWilliam Griffiths. Griffiths, although named as an individual defendant, was a client ofplaintiffs' law firm. The District Court summarized his testimony as follows:"He owns approximately 100 tapes. When Griffiths bought his Betamax, he intended not
only to time-shift (record, play-back and then erase) but also to build a library of
cassettes. Maintaining a library, however, proved too expensive, and he is now erasingsome earlier tapes and reusing them.
"Griffiths copied about 20 minutes of a Universal motion picture called 'Never Give An
Inch,' and two episodes from Universal television series entitled 'Baa Baa Black Sheep'and 'Holmes and Yo Yo.' He would have erased each of these but for the request of
plaintiffs' counsel that it be kept. Griffiths also testified that he had copied but alreadyerased Universal films called 'Alpha Caper' (erased before anyone saw it) and 'Amelia

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Earhart.' At the time of his deposition Griffiths did not intend to keep any Universal filmin his library.
"Griffiths has also recorded documentaries, news broadcasts, sporting events andpolitical programs such as a rerun of the Nixon/Kennedy debate." 480 F.Supp. 429, 436437 (1979).
Four other witnesses testified to having engaged in similar activity.

n4 The District Court summarized some of the findings in these surveys as follows:"According to plaintiffs' survey, 75.4% of the VTR owners use their machines to record
for time-shifting purposes half or most of the time. Defendants' survey showed that
96% of the Betamax owners had used the machine to record programs they otherwise
would have missed.
"When plaintiffs asked interviewees how many cassettes were in their library, 55.8% said
there were 10 or fewer. In defendants' survey, of the total programs viewed byinterviewees in the past month, 70.4% had been viewed only that one time and for
57.9%, there were no plans for further viewing." Id., at 438.
n5 "81.9% of the defendants' interviewees watched the same amount or more of
regular television as they did before owning a Betamax. 83.2% reported their frequency
of movie going was unaffected by Betamax." Id., at 439.
Sony introduced considerable evidence describing television programs that could be copied
without objection from any copyright holder, with special emphasis on sports, religious, andeducational programming. For example, their survey indicated that 7.3% of all Betamax use isto record sports events, and representatives of professional baseball, football, basketball, andhockey testified that they had no objection to the recording of their televised events for homeuse. n6
n6 See Defendants' Exh. OT, Table 20; Tr. 2447-2450, 2480, 2486-2487, 25152516, 2530-2534.
Respondents offered opinion evidence concerning the future impact of the unrestricted saleof VTR's on the commercial value of their copyrights. The District Court found, however, thatthey had failed to prove any likelihood of future harm from the use of VTR's for time-shifting.
480 F.Supp., at 469.
The District Court's Decision
The lengthy trial of the case in the District Court concerned the private, home use of VTR'sfor recording programs broadcast on the public airwaves without charge to the viewer. n7 No
issue concerning the transfer of tapes to other persons, the use of home-recorded tapes for
public performances, or the copying of programs transmitted on pay or cable televisionsystems was raised. See id., at 432-433, 442.

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n7 The trial also briefly touched upon demonstrations of the Betamax by the retailer
petitioners which were alleged to be infringements by respondents. The District Court
held against respondents on this claim, 480 F.Supp., at 456-457, the Court of Appeals
affirmed this holding, 659 F.2d 963, 976 (1981), and respondents did not cross-petitionon this issue.
The District Court concluded that noncommercial home use recording of material broadcast
over the public airwaves was a fair use of copyrighted works and did not constitute copyright
infringement. It emphasized the fact that the material was broadcast free to the public atlarge, the noncommercial character of the use, and the private character of the activity
conducted entirely within the home. Moreover, the court found that the purpose of this use
served the public interest in increasing access to television programming, an interest that "isconsistent with the First Amendment policy of providing the fullest possible access to
information through the public airwaves. Columbia Broadcasting System, Inc. v. Democratic
National Committee, 412 U.S. 94, 102." Id., at 454. n8 Even when an entire copyrighted work
was recorded, the District Court regarded the copying as fair use "because there is noaccompanying reduction in the market for 'plaintiff's original work.'" Ibid.
n8 The court also found that this "access is not just a matter of convenience, as
plaintiffs have suggested. Access has been limited not simply by inconvenience but by
the basic need to work. Access to the better program has also been limited by thecompetitive practice of counterprogramming." 480 F.Supp., at 454.
As an independent ground of decision, the District Court also concluded that Sony could not
be held liable as a contributory infringer even if the home use of a VTR was considered an
infringing use. The District Court noted that Sony had no direct involvement with any Betamax
purchasers who recorded copyrighted works off the air. Sony's advertising was silent on thesubject of possible copyright infringement, but its instruction booklet contained the following
statement:"Television programs, films, videotapes and other materials may be copyrighted. Unauthorizedrecording of such material may be contrary to the provisions of the United States copyrightlaws." Id., at 436.
The District Court assumed that Sony had constructive knowledge of the probability thatthe Betamax machine would be used to record copyrighted programs, but found that Sonymerely sold a "product capable of a variety of uses, some of them allegedly infringing." Id., at461. It reasoned:"Selling a staple article of commerce -- e. g., a typewriter, a recorder, a camera, aphotocopying machine -- technically contributes to any infringing use subsequently madethereof, but this kind of 'contribution,' if deemed sufficient as a basis for liability, would expand
the theory beyond precedent and arguably beyond judicial management.
....
". . . Commerce would indeed be hampered if manufacturers of staple items were held
liable as contributory infringers whenever they 'constructively' knew that some purchasers onsome occasions would use their product for a purpose which a court later deemed, as a matterof first impression, to be an infringement." Ibid.
Finally, the District Court discussed the respondents' prayer for injunctive relief, noting thatthey had asked for an injunction either preventing the future sale of Betamax machines, or6requiring that the machines be rendered incapable of recording copyrighted works off the air.
The court stated that it had "found no case in which the manufacturers, distributors, retailers
and advertisers of the instrument enabling the infringement were sued by the copyrightholders," and that the request for relief in this case "is unique." Id., at 465.
It concluded that an injunction was wholly inappropriate because any possible harm to
respondents was outweighed by the fact that "the Betamax could still legally be used to record
noncopyrighted material or material whose owners consented to the copying. An injunction
would deprive the public of the ability to use the Betamax for this noninfringing off-the-air
recording." Id., at 468.
The Court of Appeals' Decision
The Court of Appeals reversed the District Court's judgment on respondents' copyrightclaim. It did not set aside any of the District Court's findings of fact. Rather, it concluded as amatter of law that the home use of a VTR was not a fair use because it was not a "productiveuse." n9 It therefore held that it was unnecessary for plaintiffs to prove any harm to thepotential market for the copyrighted works, but then observed that it seemed clear that the
cumulative effect of mass reproduction made possible by VTR's would tend to diminish thepotential market for respondents' works. 659 F.2d, at 974.
n9 "Without a 'productive use,' i. e. when copyrighted material is reproduced for its
intrinsic use, the mass copying of the sort involved in this case precludes an applicationof fair use." 659 F.2d, at 971-972.
On the issue of contributory infringement, the Court of Appeals first rejected the analogy tostaple articles of commerce such as tape recorders or photocopying machines. It noted thatsuch machines "may have substantial benefit for some purposes" and do not "even remotely
raise copyright problems." Id., at 975. VTR's, however, are sold "for the primary purpose of
reproducing television programming" and "[virtually] all" such programming is copyrighted
material. Ibid. The Court of Appeals concluded, therefore, that VTR's were not suitable forany substantial noninfringing use even if some copyright owners elect not to enforce theirrights.
The Court of Appeals also rejected the District Court's reliance on Sony's lack of knowledge
that home use constituted infringement. Assuming that the statutory provisions defining theremedies for infringement applied also to the nonstatutory tort of contributory infringement,
the court stated that a defendant's good faith would merely reduce his damages liability but
would not excuse the infringing conduct. It held that Sony was chargeable with knowledge ofthe homeowner's infringing activity because the reproduction of copyrighted materials waseither "the most conspicuous use" or "the major use" of the Betamax product. Ibid.
On the matter of relief, the Court of Appeals concluded that "statutory damages may beappropriate" and that the District Court should reconsider its determination that an injunction
would not be an appropriate remedy; and, referring to "the analogous photocopying area,"suggested that a continuing royalty pursuant to a judicially created compulsory license may
Article I, ß 8, of the Constitution provides:"The Congress shall have Power . . . To Promote the Progress of Science and useful Arts, by
securing for limited Times to Authors and Inventors the exclusive Right to their respective
Writings and Discoveries."

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The monopoly privileges that Congress may authorize are neither unlimited nor primarily
designed to provide a special private benefit. Rather, the limited grant is a means by which animportant public purpose may be achieved. It is intended to motivate the creative activity ofauthors and inventors by the provision of a special reward, and to allow the public access tothe products of their genius after the limited period of exclusive control has expired.
"The copyright law, like the patent statutes, makes reward to the owner a secondary
consideration. In Fox Film Corp. v. Doyal, 286 U.S. 123, 127, Chief Justice Hughes spoke asfollows respecting the copyright monopoly granted by Congress, 'The sole interest of theUnited States and the primary object in conferring the monopoly lie in the general benefits
derived by the public from the labors of authors.' It is said that reward to the author or artist
serves to induce release to the public of the products of his creative genius." United States v.
Paramount Pictures, Inc., 334 U.S. 131, 158 (1948).
As the text of the Constitution makes plain, it is Congress that has been assigned the taskof defining the scope of the limited monopoly that should be granted to authors or to inventors
in order to give the public appropriate access to their work product. Because this task involvesa difficult balance between the interests of authors and inventors in the control andexploitation of their writings and discoveries on the one hand, and society's competing interestin the free flow of ideas, information, and commerce on the other hand, our patent andcopyright statutes have been amended repeatedly. n10
n10 In its Report accompanying the comprehensive revision of the Copyright Act in
1909, the Judiciary Committee of the House of Representatives explained this balance:"The enactment of copyright legislation by Congress under the terms of theConstitution is not based upon any natural right that the author has in his writings, . . .
but upon the ground that the welfare of the public will be served and progress of scienceand useful arts will be promoted by securing to authors for limited periods the exclusive
rights to their writings. . . .
"In enacting a copyright law Congress must consider . . . two questions: First, howmuch will the legislation stimulate the producer and so benefit the public; and, second,
how much will the monopoly granted be detrimental to the public? The granting of suchexclusive rights, under the proper terms and conditions, confers a benefit upon the
public that outweighs the evils of the temporary monopoly." H. R. Rep. No. 2222, 60th
Cong., 2d Sess., 7 (1909).
From its beginning, the law of copyright has developed in response to significant changes intechnology. n11 Indeed, it was the invention of a new form of copying equipment -- theprinting press -- that gave rise to the original need for copyright protection. n12 Repeatedly,as new developments have occurred in this country, it has been the Congress that has
fashioned the new rules that new technology made necessary. Thus, long before theenactment of the Copyright Act of 1909, 35 Stat. 1075, it was settled that the protection given
to copyrights is wholly statutory. Wheaton v. Peters, 8 Pet. 591, 661-662 (1834). The
remedies for infringement "are only those prescribed by Congress." Thompson v. Hubbard, 131
U.S. 123, 151 (1889).
n11 Thus, for example, the development and marketing of player pianos andperforated rolls of music, see White-Smith Music Publishing Co. v. Apollo Co., 209 U.S. 1(1908), preceded the enactment of the Copyright Act of 1909; innovations in copying

8techniques gave rise to the statutory exemption for library copying embodied in ß 108 of
the 1976 revision of the copyright law; the development of the technology that made it
possible to retransmit television programs by cable or by microwave systems, see
Fortnightly Corp. v. United Artists Television, Inc., 392 U.S. 390 (1968), andTeleprompter Corp. v. Columbia Broadcasting System, Inc., 415 U.S. 394 (1974),
prompted the enactment of the complex provisions set forth in 17 U. S. C. ß
111(d)(2)(B) and ß 111(d)(5) (1982 ed.) after years of detailed congressional study,
see Eastern Microwave, Inc. v. Doubleday Sports, Inc., 691 F.2d 125, 129 (CA2 1982).
By enacting the Sound Recording Amendment of 1971, 85 Stat. 391, Congress also
provided the solution to the "record piracy" problems that had been created by thedevelopment of the audio tape recorder. Sony argues that the legislative history of that
Act, see especially H. R. Rep. No. 92-487, p. 7 (1971), indicates that Congress did notintend to prohibit the private home use of either audio or video tape recording
equipment. In view of our disposition of the contributory infringement issue, we express
no opinion on that question.

n12 "Copyright protection became necessary with the invention of the printing press
and had its early beginnings in the British censorship laws. The fortunes of the law of
copyright have always been closely connected with freedom of expression, on the one
hand, and with technological improvements in means of dissemination, on the other.
Successive ages have drawn different balances among the interest of the writer in thecontrol and exploitation of his intellectual property, the related interest of the publisher,and the competing interest of society in the untrammeled dissemination of ideas."
Foreword to B. Kaplan, An Unhurried View of Copyright vii-viii (1967).
The judiciary's reluctance to expand the protections afforded by the copyright without
explicit legislative guidance is a recurring theme. See, e. g., Teleprompter Corp. v. Columbia
Broadcasting System, Inc., 415 U.S. 394 (1974); Fortnightly Corp. v. United Artists Television,Inc., 392 U.S. 390 (1968); White-Smith Music Publishing Co. v. Apollo Co., 209 U.S. 1 (1908);
Williams & Wilkins Co. v. United States, 203 Ct. Cl. 74, 487 F.2d 1345 (1973), aff'd by anequally divided Court, 420 U.S. 376 (1975). Sound policy, as well as history, supports ourconsistent deference to Congress when major technological innovations alter the market for
copyrighted materials. Congress has the constitutional authority and the institutional ability toaccommodate fully the varied permutations of competing interests that are inevitably
implicated by such new technology.
In a case like this, in which Congress has not plainly marked our course, we must be
circumspect in construing the scope of rights created by a legislative enactment which nevercontemplated such a calculus of interests. In doing so, we are guided by Justice Stewart's
exposition of the correct approach to ambiguities in the law of copyright:"The limited scope of the copyright holder's statutory monopoly, like the limited copyright
duration required by the Constitution, reflects a balance of competing claims upon the public
interest: Creative work is to be encouraged and rewarded, but private motivation must
ultimately serve the cause of promoting broad public availability of literature, music, and theother arts. The immediate effect of our copyright law is to secure a fair return for an 'author's'
creative labor. But the ultimate aim is, by this incentive, to stimulate artistic creativity for thegeneral public good. 'The sole interest of the United States and the primary object inconferring the monopoly,' this Court has said, 'lie in the general benefits derived by the publicfrom the labors of authors.' Fox Film Corp. v. Doyal, 286 U.S. 123, 127. See Kendall v. Winsor,

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21 How. 322, 327-328; Grant v. Raymond, 6 Pet. 218, 241-242. When technological change
has rendered its literal terms ambiguous, the Copyright Act must be construed in light of thisbasic purpose." Twentieth Century Music Corp. v. Aiken, 422 U.S. 151, 156 (1975) (footnotes
omitted).
Copyright protection "subsists . . . in original works of authorship fixed in any tangible
medium of expression." 17 U. S. C. ß 102(a) (1982 ed.). This protection has never accorded
the copyright owner complete control over all possible uses of his work. n13 Rather, theCopyright Act grants the copyright holder "exclusive" rights to use and to authorize the use of
his work in five qualified ways, including reproduction of the copyrighted work in copies. ß106. n14 All reproductions of the work, however, are not within the exclusive domain of the
copyright owner; some are in the public domain. Any individual may reproduce a copyrighted
wor for a "fair use"; the copyright owner does not possess the exclusive right to such a use.
Compare ß 106 with ß 107.
n13 See, e. g., White-Smith Music Publishing Co. v. Apollo Co., 209 U.S., at 19; cf.
Deep South Packing Co. v. Laitram Corp., 406 U.S. 518, 530-531 (1972). While the law
has never recognized an author's right to absolute control of his work, the naturaltendency of legal rights to express themselves in absolute terms to the exclusion of allelse is particularly pronounced in the history of the constitutionally sanctioned
monopolies of the copyright and the patent. See, e. g., United States v. Paramount
Pictures, Inc., 334 U.S. 131, 156-158 (1948) (copyright owners claiming right to tie
license of one film to license of another under copyright law); Fox Film Corp. v. Doyal,
286 U.S. 123 (1932) (copyright owner claiming copyright renders it immune from state
taxation of copyright royalties); Bobbs-Merrill Co. v. Straus, 210 U.S. 339, 349-351(1908) (copyright owner claiming that a right to fix resale price of his works within thescope of his copyright); International Business Machines Corp. v. United States, 298 U.S.
131 (1936) (patentees claiming right to tie sale of unpatented article to lease ofpatented device).

n14 Section 106 of the Act provides:"Subject to sections 107 through 118, the owner of copyright under this title has the
exclusive rights to do and to authorize any of the following:"(1) to reproduce the copyrighted work in copies or phonorecords;"(2) to prepare derivative works based upon the copyrighted work;"(3) to distribute copies or phonorecords of the copyrighted work to the public by saleor other transfer of ownership, or by rental, lease, or lending;"(4) in the case of literary, musical, dramatic, and choreographic works, pantomimes,
and motion pictures and other audiovisual works, to perform the copyrighted work
publicly; and"(5) in the case of literary, musical, dramatic, and choreographic works, pantomimes,
and pictorial, graphic, or sculptural works, including the individual images of a motion
picture or other audiovisual work, to display the copyrighted work publicly.""Anyone who violates any of the exclusive rights of the copyright owner," that is, anyone
who trespasses into his exclusive domain by using or authorizing the use of the copyrighted

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work in one of the five ways set forth in the statute, "is an infringer of the copyright." ß501(a). Conversely, anyone who is authorized by the copyright owner to use the copyrighted
work in a way specified in the statute or who makes a fair use of the work is not an infringer ofthe copyright with respect to such use.
The Copyright Act provides the owner of a copyright with a potent arsenal of remedies
against an infringer of his work, including an injunction to restrain the infringer from violating
his rights, the impoundment and destruction of all reproductions of his work made in violationof his rights, a recovery of his actual damages and any additional profits realized by the
infringer or a recovery of statutory damages, and attorney's fees. ß ß 502-505. n15
n15 Moreover, anyone who willfully infringes the copyright to reproduce a motion
picture for purposes of commercial advantage or private financial gain is subject tosubstantial criminal penalties, 17 U. S. C. ß 506(a) (1982 ed.), and the fruits andinstrumentalities of the crime are forfeited upon conviction, ß 506(b).
The two respondents in this case do not seek relief against the Betamax users who haveallegedly infringed their copyrights. Moreover, this is not a class action on behalf of all
copyright owners who license their works for television broadcast, and respondents have noright to invoke whatever rights other copyright holders may have to bring infringement
actions based on Betamax copying of their works. n16 As was made clear by their own
evidence, the copying of the respondents' programs represents a small portion of the total useof VTR's. It is, however, the taping of respondents' own copyrighted programs that provides
them with standing to charge Sony with contributory infringement. To prevail, they have theburden of proving that users of the Betamax have infringed their copyrights and that Sonyshould be held responsible for that infringement.

n16 In this regard, we reject respondents' attempt to cast this action as comparable
to a class action because of the positions taken by amici with copyright interests andtheir attempt to treat the statements made by amici as evidence in this case. See Brief
for Respondents 1, and n. 1, 6, 52, 53, and n. 116. The stated desires of amici
concerning the outcome of this or any litigation are no substitute for a class action, arenot evidence in the case, and do not influence our decision; we examine an amicus
curiae brief solely for whatever aid it provides in analyzing the legal questions before us.
III
The Copyright Act does not expressly render anyone liable for infringement committed byanother. In contrast, the Patent Act expressly brands anyone who "actively induces
infringement of a patent" as an infringer, 35 U. S. C. ß 271(b), and further imposes liability on
certain individuals labeled "contributory" infringers, ß 271(c). The absence of such express
language in the copyright statute does not preclude the imposition of liability for copyright
infringements on certain parties who have not themselves engaged in the infringing activity.
n17 For vicarious liability is imposed in virtually all areas of the law, and the concept ofcontributory infringement is merely a species of the broader problem of identifying thecircumstances in which it is just to hold one individual accountable for the actions of another.

11

n17 As the District Court correctly observed, however, "the lines between direct
infringement, contributory infringement and vicarious liability are not clearly drawn . . .
." 480 F.Supp., at 457-458. The lack of clarity in this area may, in part, be attributable
to the fact that an infringer is not merely one who uses a work without authorization by
the copyright owner, but also one who authorizes the use of a copyrighted work without
actual authority from the copyright owner.
We note the parties' statements that the questions of Sony's liability under the"doctrines" of "direct infringement" and "vicarious liability" are not nominally before thisCourt. Compare Brief for Respondents 9, n. 22, 41, n. 90, with Reply Brief for
Petitioners 1, n. 2. We also observe, however, that reasoned analysis of respondents'
unprecedented contributory infringement claim necessarily entails consideration ofarguments and case law which may also be forwarded under the other labels, and indeed
the parties to a large extent rely upon such arguments and authority in support of theirrespective positions on the issue of contributory infringement.
Such circumstances were plainly present in Kalem Co. v. Harper Brothers, 222 U.S. 55(1911), the copyright decision of this Court on which respondents place their principal reliance.
In Kalem, the Court held that the producer of an unauthorized film dramatization of the
copyrighted book Ben Hur was liable for his sale of the motion picture to jobbers, who in turnarranged for the commercial exhibition of the film. Justice Holmes, writing for the Court,
explained:"The defendant not only expected but invoked by advertisement the use of its films fordramatic reproduction of the story. That was the most conspicuous purpose for which they
could be used, and the one for which especially they were made. If the defendant did notcontribute to the infringement it is impossible to do so except by taking part in the final act. It
is liable on principles recognized in every part of the law." Id., at 62-63.
The use for which the item sold in Kalem had been "especially" made was, of course, todisplay the performance that had already been recorded upon it. The producer had personallyappropriated the copyright owner's protected work and, as the owner of the tangible medium
of expression upon which the protected work was recorded, authorized that use by his sale ofthe film to jobbers. But that use of the film was not his to authorize: the copyright ownerpossessed the exclusive right to authorize public performances of his work. Further, theproducer personally advertised the unauthorized public performances, dispelling any possible
doubt as to the use of the film which he had authorized.
Respondents argue that Kalem stands for the proposition that supplying the "means" toaccomplish an infringing activity and encouraging that activity through advertisement are
sufficient to establish liability for copyright infringement. This argument rests on a grossgeneralization that cannot withstand scrutiny. The producer in Kalem did not merely provide
the "means" to accomplish an infringing activity; the producer supplied the work itself, albeit ina new medium of expression. Sony in the instant case does not supply Betamax consumers
with respondents' works; respondents do. Sony supplies a piece of equipment that is generally
capable of copying the entire range of programs that may be televised: those that are
uncopyrighted, those that are copyrighted but may be copied without objection from the
copyright holder, and those that the copyright holder would prefer not to have copied. The
Betamax can be used to make authorized or unauthorized uses of copyrighted works, but therange of its potential use is much broader than the particular infringing use of the film Ben Hurinvolved in Kalem. Kalem does not support respondents' novel theory of liability.
Justice Holmes stated that the producer had "contributed" to the infringement of the
copyright, and the label "contributory infringement" has been applied in a number of lower
12

court copyright cases involving an ongoing relationship between the direct infringer and thecontributory infringer at the time the infringing conduct occurred. In such cases, as in othersituations in which the imposition of vicarious liability is manifestly just, the "contributory"
infringer was in a position to control the use of copyrighted works by others and had
authorized the use without permission from the copyright owner. n18 This case, however,plainly does not fall in that category. The only contact between Sony and the users of the
Betamax that is disclosed by this record occurred at the moment of sale. The District Court
expressly found that "no employee of Sony, Sonam or DDBI had either direct involvement withthe allegedly infringing activity or direct contact with purchasers of Betamax who recorded
copyrighted works off-the-air." 480 F.Supp., at 460. And it further found that "there was noevidence that any of the copies made by Griffiths or the other individual witnesses in this suit
were influenced or encouraged by [Sony's] advertisements." Ibid.
n18 The so-called "dance hall cases," Famous Music Corp. v. Bay State Harness
Horse Racing & Breeding Assn., Inc., 554 F.2d 1213 (CA1 1977) (racetrack retained
infringer to supply music to paying customers); KECA Music, Inc. v. Dingus McGee's Co.,
432 F.Supp. 72 (WD Mo. 1977) (cocktail lounge hired musicians to supply music topaying customers); Dreamland Ball Room, Inc. v. Shapiro, Bernstein & Co., 36 F.2d 354(CA7 1929) (dance hall hired orchestra to supply music to paying customers), are often
contrasted with the so-called landlord-tenant cases, in which landlords who leased
premises to a direct infringer for a fixed rental and did not participate directly in any
infringing activity were found not to be liable for contributory infringement. E. g.,
Deutsch v. Arnold, 98 F.2d 686 (CA2 1938).
In Shapiro, Bernstein & Co. v. H. L. Green Co., 316 F.2d 304 (CA2 1963), the ownerof 23 chainstores retained the direct infringer to run its record departments. The
relationship was structured as a licensing arrangement, so that the defendant bore noneof the business risk of running the department. Instead, it received 10% or 12% of thedirect infringer's gross receipts. The Court of Appeals concluded:"[The dance-hall cases] and this one lie closer on the spectrum to the employeremployee model, than to the landlord-tenant model. . . . [On] the particular facts before
us, . . . Green's relationship to its infringing licensee, as well as its strong concern for thefinancial success of the phonograph record concession, renders it liable for theunauthorized sales of the 'bootleg' records.
....
". . . [The] imposition of vicarious liability in the case before us cannot be deemed
unduly harsh or unfair. Green has the power to police carefully the conduct of its
concessionaire . . .; our judgment will simply encourage it to do so, thus placing
responsibility where it can and should be effectively exercised." Id., at 308 (emphasis inoriginal).
In Gershwin Publishing Corp. v. Columbia Artists Management, Inc., 443 F.2d 1159
(CA2 1971), the direct infringers retained the contributory infringer to manage theirperformances. The contributory infringer would contact each direct infringer, obtain thetitles of the musical compositions to be performed, print the programs, and then sell the
programs to its own local organizations for distribution at the time of the direct
infringement. Id., at 1161. The Court of Appeals emphasized that the contributory
infringer had actual knowledge that the artists it was managing were performing
copyrighted works, was in a position to police the infringing conduct of the artists, andderived substantial benefit from the actions of the primary infringers. Id., at 1163.

13

In Screen Gems-Columbia Music, Inc. v. Mark-Fi Records, Inc., 256 F.Supp. 399(SDNY 1966), the direct infringer manufactured and sold bootleg records. In denying a
motion for summary judgment, the District Court held that the infringer's advertising
agency, the radio stations that advertised the infringer's works, and the service agency
that boxed and mailed the infringing goods could all be held liable, if at trial it could bedemonstrated that they knew or should have known that they were dealing in illegal
goods.
If vicarious liability is to be imposed on Sony in this case, it must rest on the fact that tit
has sold equipment with constructive knowledge of the fact that its customers may use that
equipment to make unauthorized copies of copyrighted material. There is no precedent in thelaw of copyright for the imposition of vicarious liability on such a theory. The closest analogy
is provided by the patent law cases to which it is appropriate to refer because of the historickinship between patent law and copyright law. n19
n19 E. g., United States v. Paramount Pictures, Inc., 334 U.S., at 158; Fox Film Corp.
v. Doyal, 286 U.S., at 131; Wheaton v. Peters, 8 Pet. 591, 657-658 (1834). The twoareas of the law, naturally, are not identical twins, and we exercise the caution which wehave expressed in the past in applying doctrine formulated in one area to the other. See
generally Mazer v. Stein, 347 U.S. 201, 217-218 (1954); Bobbs-Merrill Co. v. Straus,
210 U.S., at 345.
We have consistently rejected the proposition that a similar kinship exists between
copyright law and trademark law, and in the process of doing so have recognized thebasic similarities between copyrights and patents. The Trade-Mark Cases, 100 U.S. 82,
91-92 (1879); see also United Drug Co. v. Theodore Rectanus Co., 248 U.S. 90, 97(1918) (trademark right "has little or no analogy" to copyright or patent); McLean v.
Fleming, 96 U.S. 245, 254 (1878); Canal Co. v. Clark, 13 Wall. 311, 322 (1872). Given
the fundamental differences between copyright law and trademark law, in this copyrightcase we do not look to the standard for contributory infringement set forth in Inwood
Laboratories, Inc. v. Ives Laboratories, Inc., 456 U.S. 844, 854-855 (1982), which wascrafted for application in trademark cases. There we observed that a manufacturer or
distributor could be held liable to the owner of a trademark if it intentionally induced amerchant down the chain of distribution to pass off its product as that of the trademark
owner's or if it continued to supply a product which could readily be passed off to aparticular merchant whom it knew was mislabeling the product with the trademark
owner's mark. If Inwood's narrow standard for contributory trademark infringement
governed here, respondents' claim of contributory infringement would merit little
discussion. Sony certainly does not "intentionally [induce]" its customers to makeinfringing uses of respondents' copyrights, nor does it supply its products to identified
individuals known by it to be engaging in continuing infringement of respondents'
copyrights, see id., at 855.
In the Patent Act both the concept of infringement and the concept of contributory
infringement are expressly defined by statute. n20 The prohibition against contributory
infringement is confined to the knowing sale of a component especially made for use inconnection with a particular patent. There is no suggestion in the statute that one patentee
may object to the sale of a product that might be used in connection with other patents.
Moreover, the Act expressly provides that the sale of a "staple article or commodity ofcommerce suitable for substantial noninfringing use" is not contributory infringement. 35 U. S.
C. ß 271(c).
14n20 Title 35 U. S. C. ß 271 provides:"(a) Except as otherwise provided in this title, whoever without authority makes, uses
or sells any patented invention, within the United States during the term of the patent
therefor, infringes the patent.
"(b) Whoever actively induces infringement of a patent shall be liable as an infringer.
"(c) Whoever sells a component of a patented machine, manufacture, combination orcomposition, or a material or apparatus for use in practicing a patented process,constituting a material part of the invention, knowing the same to be especially made orespecially adapted for use in an infringement of such patent, and not a staple article orcommodity of commerce suitable for substantial noninfringing use, shall be liable as acontributory infringer.
"(d) No patent owner otherwise entitled to relief for infringement or contributory
infringement of a patent shall be denied relief or deemed guilty of misuse or illegal
extension of the patent right by reason of his having done one or more of the following:(1) derived revenue from acts which if performed by another without his consent would
constitute contributory infringement of the patent; (2) licensed or authorized another toperform acts which if performed without his consent would constitute contributory
infringement of the patent; (3) sought to enforce his patent rights against infringement
or contributory infringement."
When a charge of contributory infringement is predicated entirely on the sale of an articleof commerce that is used by the purchaser to infringe a patent, the public interest in access tothat article of commerce is necessarily implicated. A finding of contributory infringement does
not, of course, remove the article from the market altogether; it does, however, give thepatentee effective control over the sale of that item. Indeed, a finding of contributory
infringement is normally the functional equivalent of holding that the disputed article is within
the monopoly granted to the patentee. n21
n21 It seems extraordinary to suggest that the Copyright Act confers upon all
copyright owners collectively, much less the two respondents in this case, the exclusive
right to distribute VTR's simply because they may be used to infringe copyrights. That,
however, is the logical implication of their claim. The request for an injunction below
indicates that respondents seek, in effect, to declare VTR's contraband. Their suggestionin this Court that a continuing royalty pursuant to a judicially created compulsory license
would be an acceptable remedy merely indicates that respondents, for their part, would
be willing to license their claimed monopoly interest in VTR's to Sony in return for aroyalty.
For that reason, in contributory infringement cases arising under the patent laws the Court
has always recognized the critical importance of not allowing the patentee to extend hismonopoly beyond the limits of his specific grant. These cases deny the patentee any right tocontrol the distribution of unpatented articles unless they are "unsuited for any commercial
noninfringing use." Dawson Chemical Co. v. Rohm & Hass Co., 448 U.S. 176, 198 (1980).
Unless a commodity "has no use except through practice of the patented method," id., at 199,the patentee has no right to claim that its distribution constitutes contributory infringement.
"To form the basis for contributory infringement the item must almost be uniquely suited as a15

component of the patented invention." P. Rosenberg, Patent Law Fundamentals ß 17.02[2](2d ed. 1982). "[A] sale of an article which though adapted to an infringing use is also
adapted to other and lawful uses, is not enough to make the seller a contributory infringer.
Such a rule would block the wheels of commerce." Henry v. A. B. Dick Co., 224 U.S. 1, 48(1912), overruled on other grounds, Motion Picture Patents Co. v. Universal Film Mfg. Co., 243
U.S. 502, 517 (1917).
We recognize there are substantial differences between the patent and copyright laws. But inboth areas the contributory infringement doctrine is grounded on the recognition that adequate
protection of a monopoly may require the courts to look beyond actual duplication of a device
or publication to the products or activities that make such duplication possible. The staple
article of commerce doctrine must strike a balance between a copyright holder's legitimate
demand for effective -- not merely symbolic -- protection of the statutory monopoly, and therights of others freely to engage in substantially unrelated areas of commerce. Accordingly,
the sale of copying equipment, like the sale of other articles of commerce, does not constitutecontributory infringement if the product is widely used for legitimate, unobjectionablepurposes. Indeed, it need merely be capable of substantial noninfringing uses.
IV
The question is thus whether the Betamax is capable of commercially significant
noninfringing uses. In order to resolve that question, we need not explore all the different
potential uses of the machine and determine whether or not they would constituteinfringement. Rather, we need only consider whether on the basis of the facts as found by theDistrict Court a significant number of them would be noninfringing. Moreover, in order toresolve this case we need not give precise content to the question of how much use iscommercially significant. For one potential use of the Betamax plainly satisfies this standard,
however it is understood: private, noncommercial time-shifting in the home. It does so both(A) because respondents have no right to prevent other copyright holders from authorizing it
for their programs, and (B) because the District Court's factual findings reveal that even theunauthorized home time-shifting of respondents' programs is legitimate fair use.
A. Authorized Time-Shifting
Each of the respondents owns a large inventory of valuable copyrights, but in the total
spectrum of television programming their combined market share is small. The exact
percentage is not specified, but it is well below 10%. n22 If they were to prevail, the outcomeof this litigation would have a significant impact on both the producers and the viewers of theremaining 90% of the programming in the Nation. No doubt, many other producers share
respondents' concern about the possible consequences of unrestricted copying. Neverthelessthe findings of the District Court make it clear that time-shifting may enlarge the total viewing
audience and that many producers are willing to allow private time-shifting to continue, atleast for an experimental time period. n23
n22 The record suggests that Disney's programs at the time of trial consisted ofapproximately one hour a week of network television and one syndicated series.
Universal's percentage in the Los Angeles market on commercial television stations wasunder 5%. See Tr. 532-533, 549-550.
n23 The District Court did not make any explicit findings with regard to how muchbroadcasting is wholly uncopyrighted. The record does include testimony that at least
one movie -- My Man Godfrey -- falls within that category, id., at 2300-2301, and certain
broadcasts produced by the Federal Government are also uncopyrighted. See 17 U. S.

16

C. ß 105 (1982 ed.). Cf. Schnapper v. Foley, 215 U. S. App. D. C. 59, 667 F.2d 102(1981) (explaining distinction between work produced by the Government and workcommissioned by the Government). To the extent such broadcasting is now significant,it further bolsters our conclusion. Moreover, since copyright protection is not perpetual,
the number of audiovisual works in the public domain necessarily increases each year.
The District Court found:"Even if it were deemed that home-use recording of copyrighted material constituted
infringement, the Betamax could still legally be used to record noncopyrighted material ormaterial whose owners consented to the copying. An injunction would deprive the public of theability to use the Betamax for this noninfringing off-the-air recording.
"Defendants introduced considerable testimony at trial about the potential for such copyingof sports, religious, educational and other programming. This included testimony from
representatives of the Offices of the Commissioners of the National Football, Basketball,
Baseball and Hockey Leagues and Associations, the Executive Director of National Religious
Broadcasters and various educational communications agencies. Plaintiffs attack the weight of
the testimony offered and also contend that an injunction is warranted because infringing uses
outweigh noninfringing uses.
"Whatever the future percentage of legal versus illegal home-use recording might be, an
injunction which seeks to deprive the public of the very tool or article of commerce capable ofsome noninfringing use would be an extremely harsh remedy, as well as one unprecedented incopyright law." 480 F.Supp., at 468.
Although the District Court made these statements in the context of considering the
propriety of injunctive relief, the statements constitute a finding that the evidence concerning"sports, religious, educational and other programming" was sufficient to establish a significant
quantity of broadcasting whose copying is now authorized, and a significant potential for futureauthorized copying. That finding is amply supported by the record. In addition to the religious
and sports officials identified explicitly by the District Court, n24 two items in the record
deserve specific mention.
n24 See Tr. 2447-2450 (Alexander Hadden, Major League Baseball); id., at 2480,
2486-2487 (Jay Moyer, National Football League); id., at 2515-2516 (David Stern,
National Basketball Association); id., at 2530-2534 (Gilbert Stein, National Hockey
League); id., at 2543-2552 (Thomas Hansen, National Collegiate Athletic Association);
id., at 2565-2572 (Benjamin Armstrong, National Religious Broadcasters). Those officials
were authorized to be the official spokespersons for their respective institutions in thislitigation. Id., at 2432, 2479, 2509-2510, 2530, 2538, 2563. See Fed. Rule Civ. Proc.
30(b)(6).
First is the testimony of John Kenaston, the station manager of Channel 58, an educational
station in Los Angeles affiliated with the Public Broadcasting Service. He explained andauthenticated the station's published guide to its programs. n25 For each program, the guidetells whether unlimited home taping is authorized, home taping is authorized subject to certain
restrictions (such as erasure within seven days), or home taping is not authorized at all. The
Spring 1978 edition of the guide described 107 programs. Sixty-two of those programs or
58% authorize some home taping. Twenty-one of them or almost 20% authorize unrestricted
home taping. n26

17

n25 Tr. 2863-2902; Defendants' Exh. PI.
n26 See also Tr. 2833-2844 (similar testimony by executive director of New Jersey
Public Broadcasting Authority). Cf. id., at 2592-2605 (testimony by chief of New York
Education Department's Bureau of Mass Communications approving home taping for
educational purposes).
Second is the testimony of Fred Rogers, president of the corporation that produces andowns the copyright on Mister Rogers' Neighborhood. The program is carried by more public
television stations than any other program. Its audience numbers over 3,000,000 families aday. He testified that he had absolutely no objection to home taping for noncommercial use
and expressed the opinion that it is a real service to families to be able to record children's
programs and to show them at appropriate times. n27
n27 "Some public stations, as well as commercial stations, program the'Neighborhood' at hours when some children cannot use it. I think that it's a real service
to families to be able to record such programs and show them at appropriate times. I
have always felt that with the advent of all of this new technology that allows people totape the 'Neighborhood' off-the-air, and I'm speaking for the 'Neighborhood' because
that's what I produce, that they then become much more active in the programming of
their family's television life. Very frankly, I am opposed to people being programmed byothers. My whole approach in broadcasting has always been 'You are an important
person just the way you are. You can make healthy decisions.' Maybe I'm going on too
long, but I just feel that anything that allows a person to be more active in the control of
his or her life, in a healthy way, is important." Id., at 2920-2921. See also Defendants'
Exh. PI, p. 85.
If there are millions of owners of VTR's who make copies of televised sports events,
religious broadcasts, and educational programs such as Mister Rogers' Neighborhood, and if
the proprietors of those programs welcome the practice, the business of supplying theequipment that makes such copying feasible should not be stifled simply because theequipment is used by some individuals to make unauthorized reproductions of respondents'
works. The respondents do not represent a class composed of all copyright holders. Yet afinding of contributory infringement would inevitably frustrate the interests of broadcasters inreaching the portion of their audience that is available only through time-shifting.
Of course, the fact that other copyright holders may welcome the practice of time-shifting does
not mean that respondents should be deemed to have granted a license to copy theirprograms. Third-party conduct would be wholly irrelevant in an action for direct infringementof respondents' copyrights. But in an action for contributory infringement against the seller of
copying equipment, the copyright holder may not prevail unless the relief that he seeks affects
only his programs, or unless he speaks for virtually all copyright holders with an interest in theoutcome. In this case, the record makes it perfectly clear that there are many important
producers of national and local television programs who find nothing objectionable about theenlargement in the size of the television audience that results from the practice of time-shifting
for private home use. n28 The seller of the equipment that expands those producers'
audiences cannot be a contributory infringer if, as is true in this case, it has had no direct
involvement with any infringing activity.

18

n28 It may be rare for large numbers of copyright owners to authorize duplication of
their works without demanding a fee from the copier. In the context of publicbroadcasting, however, the user of the copyrighted work is not required to pay a fee foraccess to the underlying work. The traditional method by which copyright owners
capitalize upon the television medium -- commercially sponsored free public broadcast
over the public airwaves -- is predicated upon the assumption that compensation for thevalue of displaying the works will be received in the form of advertising revenues.
In the context of television programming, some producers evidently believe that
permitting home viewers to make copies of their works off the air actually enhances thevalue of their copyrights. Irrespective of their reasons for authorizing the practice, they
do so, and in significant enough numbers to create a substantial market for anoninfringing use of the Sony VTR's. No one could dispute the legitimacy of that market
if the producers had authorized home taping of their programs in exchange for a license
fee paid directly by the home user. The legitimacy of that market is not compromised
simply because these producers have authorized home taping of their programs without
demanding a fee from the home user. The copyright law does not require a copyrightowner to charge a fee for the use of his works, and as this record clearly demonstrates,
the owner of a copyright may well have economic or noneconomic reasons for permitting
certain kinds of copying to occur without receiving direct compensation from the copier.
It is not the role of the courts to tell copyright holders the best way for them to exploit
their copyrights: even if respondents' competitors were ill-advised in authorizing home
videotaping, that would not change the fact that they have created a substantial market
for a paradigmatic noninfringing use of Sony's product.
B. Unauthorized Time-Shifting
Even unauthorized uses of a copyrighted work are not necessarily infringing. An unlicensed useof the copyright is not an infringement unless it conflicts with one of the specific exclusive
rights conferred by the copyright statute. Twentieth Century Music Corp. v. Aiken, 422 U.S.,
at 154-155. Moreover, the definition of exclusive rights in ß 106 of the present Act is prefacedby the words "subject to sections 107 through 118." Those sections describe a variety of usesof copyrighted material that "are not infringements of copyright" "notwithstanding theprovisions of section 106." The most pertinent in this case is ß 107, the legislativeendorsement of the doctrine of "fair use." n29
n29 The Copyright Act of 1909, 35 Stat. 1075, did not have a "fair use" provision.
Although that Act's compendium of exclusive rights "to print, reprint, publish, copy, andvend the copyrighted work" was broad enough to encompass virtually all potential
interactions with a copyrighted work, the statute was never so construed. The courts
simply refused to read the statute literally in every situation. When Congress amended
the statute in 1976, it indicated that it "intended to restate the present judicial doctrineof fair use, not to change, narrow, or enlarge it in any way." H. R. Rep. No. 94-1476, p.
66 (1976).
That section identifies various factors n30 that enable a court to apply an "equitable rule ofreason" analysis to particular claims of infringement. n31 Although not conclusive, the first
factor requires that "the commercial or nonprofit character of an activity" be weighed in any
fair use decision. n32 If the Betamax were used to make copies for a commercial or profitmaking purpose, such use would presumptively be unfair. The contrary presumption isappropriate here, however, because the District Court's findings plainly establish that time-19

shifting for private home use must be characterized as a noncommercial, nonprofit activity.
Moreover, when one considers the nature of a televised copyrighted audiovisual work, see 17
U. S. C. ß 107(2) (1982 ed.), and that time-shifting merely enables a viewer to see such awork which he had been invited to witness in its entirety free of charge, the fact that theentire work is reproduced, see ß 107(3), does not have its ordinary effect of militating against
a finding of fair use. n33
n30 Section 107 provides:"Notwithstanding the provisions of section 106, the fair use of a copyrighted work,
including such use by reproduction in copies or phonorecords or by any other means
specified by that section, for purposes such as criticism, comment, news reporting,teaching (including multiple copies for classroom use), scholarship, or research, is not an
infringement of copyright. In determining whether the use made of a work in any
particular case is a fair use the factors to be considered shall include -"(1) the purpose and character of the use, including whether such use is of acommercial nature or is for nonprofit educational purposes;"(2) the nature of the copyrighted work;"(3) the amount and substantiality of the portion used in relation to the copyrighted
work as a whole; and"(4) the effect of the use upon the potential market for or value of the copyrighted
work." 17 U. S. C. ß 107 (1982 ed.).
n31 The House Report expressly stated that the fair use doctrine is an "equitable ruleof reason" in its explanation of the fair use section:"Although the courts have considered and ruled upon the fair use doctrine over andover again, no real definition of the concept has ever emerged. Indeed, since thedoctrine is an equitable rule of reason, no generally applicable definition is possible, andeach case raising the question must be decided on its own facts. . . .
....
"General intention behind the provision"The statement of the fair use doctrine in section 107 offers some guidance to users
in determining when the principles of the doctrine apply. However, the endless variety
of situations and combinations of circumstances that can rise in particular cases
precludes the formulation of exact rules in the statute. The bill endorses the purposeand general scope of the judicial doctrine of fair use, but there is no disposition to freeze
the doctrine in the statute, especially during a period of rapid technological change.
Beyond a very broad statutory explanation of what fair use is and some of the criteria
applicable to it, the courts must be free to adapt the doctrine to particular situations on acase-by-case basis." H. R. Rep. No. 94-1476, supra, at 65-66.
The Senate Committee similarly eschewed a rigid, bright-line approach to fair use.
The Senate Report endorsed the view "that off-the-air recording for convenience" could
be considered "fair use" under some circumstances, although it then made it clear that it
did not intend to suggest that off-the-air recording for convenience should be deemed
fair use under any circumstances imaginable. S. Rep. No. 94-473, pp. 65-66 (1975).
The latter qualifying statement is quoted by the dissent, post, at 481, and if read in
isolation, would indicate that the Committee intended to condemn all off-the-air

20

recording for convenience. Read in context, however, it is quite clear that that was thefarthest thing from the Committee's intention.

n32 "The Committee has amended the first of the criteria to be considered -- 'thepurpose and character of the use' -- to state explicitly that this factor includes aconsideration of 'whether such use is of a commercial nature or is for non-profit
educational purposes.' This amendment is not intended to be interpreted as any sort of
not-for-profit limitation on educational uses of copyrighted works. It is an express
recognition that, as under the present law, the commercial or non-profit character of anactivity, while not conclusive with respect to fair use, can and should be weighed alongwith other factors in fair use decisions." H. R. Rep. No. 94-1476, supra, at 66.
n33 It has been suggested that "consumptive uses of copyrights by home VTR users
are commercial even if the consumer does not sell the homemade tape because theconsumer will not buy tapes separately sold by the copyrightholder." Home Recording of
Copyrighted Works: Hearing before the Subcommittee on Courts, Civil Liberties and theAdministration of Justice of the House Committee on the Judiciary, 97th Cong., 2d Sess.,
pt. 2, p. 1250 (1982) (memorandum of Prof. Laurence H. Tribe). Furthermore, "[the]error in excusing such theft as noncommercial," we are told, "can be seen by simple
analogy: jewel theft is not converted into a noncommercial veniality if stolen jewels are
simply worn rather than sold." Ibid. The premise and the analogy are indeed simple, butthey add nothing to the argument. The use to which stolen jewelry is put is quite
irrelevant in determining whether depriving its true owner of his present possessory
interest in it is venial; because of the nature of the item and the true owner's interests inphysical possession of it, the law finds the taking objectionable even if the thief does not
use the item at all. Theft of a particular item of personal property of course may havecommercial significance, for the thief deprives the owner of his right to sell thatparticular item to any individual. Time-shifting does not even remotely entail
comparable consequences to the copyright owner. Moreover, the time-shifter no moresteals the program by watching it once than does the live viewer, and the live viewer is
no more likely to buy prerecorded videotapes than is the time-shifter. Indeed, no live
viewer would buy a prerecorded videotape if he did not have access to a VTR.
This is not, however, the end of the inquiry because Congress has also directed us toconsider "the effect of the use upon the potential market for or value of the copyrighted work."ß 107(4). The purpose of copyright is to create incentives for creative effort. Even copying
for noncommercial purposes may impair the copyright holder's ability to obtain the rewards
that Congress intended him to have. But a use that has no demonstrable effect upon thepotential market for, or the value of, the copyrighted work need not be prohibited in order toprotect the author's incentive to create. The prohibition of such noncommercial uses would
merely inhibit access to ideas without any countervailing benefit. n34
n34 Cf. A. Latman, Fair Use of Copyrighted Works (1958), reprinted in Study No. 14
for the Senate Committee on the Judiciary, Copyright Law Revision, Studies Prepared for
the Subcommittee on Patents, Trademarks, and Copyrights, 86th Cong., 2d Sess., 30(1960):

21

"In certain situations, the copyright owner suffers no substantial harm from the use of
his work. . . . Here again, is the partial marriage between the doctrine of fair use andthe legal maxim de minimus non curat lex."Thus, although every commercial use of copyrighted material is presumptively an unfair
exploitation of the monopoly privilege that belongs to the owner of the copyright,
noncommercial uses are a different matter. A challenge to a noncommercial use of a
copyrighted work requires proof either that the particular use is harmful, or that if it should
become widespread, it would adversely affect the potential market for the copyrighted work.
Actual present harm need not be shown; such a requirement would leave the copyright holder
with no defense against predictable damage. Nor is it necessary to show with certainty that
future harm will result. What is necessary is a showing by a preponderance of the evidence
that some meaningful likelihood of future harm exists. If the intended use is for commercial
gain, that likelihood may be presumed. But if it is for a noncommercial purpose, the likelihood
must be demonstrated.
In this case, respondents failed to carry their burden with regard to home time-shifting.
The District Court described respondents' evidence as follows:"Plaintiffs' experts admitted at several points in the trial that the time-shifting without
librarying would result in 'not a great deal of harm.' Plaintiffs' greatest concern about timeshifting is with 'a point of important philosophy that transcends even commercial judgment.'
They fear that with any Betamax usage, 'invisible boundaries' are passed: 'the copyright ownerhas lost control over his program.'" 480 F.Supp., at 467.
Later in its opinion, the District Court observed:"Most of plaintiffs' predictions of harm hinge on speculation about audience viewing patterns
and ratings, a measurement system which Sidney Sheinberg, MCA's president, calls a 'blackart' because of the significant level of imprecision involved in the calculations." Id., at 469.
n35
n35 See also 480 F.Supp., at 451:
"It should be noted, however, that plaintiffs' argument is more complicated andspeculative than was the plaintiff's in Williams & Wilkins. . . . Here, plaintiffs ask the
court to find harm based on many more assumptions. . . . As is discussed more fully inPart IV infra, some of these assumptions are based on neither fact nor experience, andplaintiffs admit that they are to some extent inconsistent and illogical."There was no need for the District Court to say much about past harm. "Plaintiffs haveadmitted that no actual harm to their copyrights has occurred to date." Id., at 451.
On the question of potential future harm from time-shifting, the District Court offered amore detailed analysis of the evidence. It rejected respondents' "fear that persons 'watching'
the original telecast of a program will not be measured in the live audience and the ratings andrevenues will decrease," by observing that current measurement technology allows the
Betamax audience to be reflected. Id., at 466. n36 It rejected respondents' prediction "thatlive television or movie audiences will decrease as more people watch Betamax tapes as analternative," with the observation that "[there] is no factual basis for [the underlying]assumption." Ibid. n37 It rejected respondents' "fear that time-shifting will reduce audiences
for telecast reruns," and concluded instead that "given current market practices, this should
22

aid plaintiffs rather than harm them." Ibid. n38 And it declared that respondents' suggestionthat "theater or film rental exhibition of a program will suffer because of time-shift recording ofthat program" "lacks merit." Id., at 467. n39
n36 "There was testimony at trial, however, that Nielsen Ratings has alreadydeveloped the ability to measure when a Betamax in a sample home is recording the
program. Thus, the Betamax owner will be measured as a part of the live audience. The
later diary can augment that measurement with information about subsequent viewing."
Id., at 466.
In a separate section, the District Court rejected plaintiffs' suggestion that thecommercial attractiveness of television broadcasts would be diminished because
Betamax owners would use the pause button or fast-forward control to avoid viewing
advertisements:"It must be remembered, however, that to omit commercials, Betamax owners mustview the program, including the commercials, while recording. To avoid commercials
during playback, the viewer must fast-forward and, for the most part, guess as to when
the commercial has passed. For most recordings, either practice may be too tedious. As
defendants' survey showed, 92% of the programs were recorded with commercials andonly 25% of the owners fast-forward through them. Advertisers will have to make thesame kinds of judgments they do now about whether persons viewing televised
programs actually watch the advertisements which interrupt them." Id., at 468.

n37 "Here plaintiffs assume that people will view copies when they would otherwise
be watching television or going to the movie theater. There is no factual basis for thisassumption. It seems equally likely that Betamax owners will play their tapes when
there is nothing on television they wish to see and no movie they want to attend.
Defendants' survey does not show any negative effect of Betamax ownership on
television viewing or theater attendance." Id., at 466.
n38 "The underlying assumptions here are particularly difficult to accept. Plaintiffs
explain that the Betamax increases access to the original televised material and that themore people there are in this original audience, the fewer people the rerun will attract.
Yet current marketing practices, including the success of syndication, show just the
opposite. Today, the larger the audience for the original telecast, the higher the priceplaintiffs can demand from broadcasters from rerun rights. There is no survey within theknowledge of this court to show that the rerun audience is comprised of persons who
have not seen the program. In any event, if ratings can reflect Betamax recording,original audiences may increase and, given market practices, this should aid plaintiffs
rather than harm them." Ibid.

n39 "This suggestion lacks merit. By definition, time-shift recording entails viewing
and erasing, so the program will no longer be on tape when the later theater run begins.
Of course, plaintiffs may fear that the Betamax owners will keep the tapes long enoughto satisfy all their interest in the program and will, therefore, not patronize later theater
exhibitions. To the extent that this practice involves librarying, it is addressed in section
V. C., infra. It should also be noted that there is no evidence to suggest that the public

23

interest in later theatrical exhibitions of motion pictures will be reduced any more by
Betamax recording than it already is by the television broadcast of the film." Id., at 467.
After completing that review, the District Court restated its overall conclusion several
times, in several different ways. "Harm from time-shifting is speculative and, at best,minimal." Ibid. "The audience benefits from the time-shifting capability have already been
discussed. It is not implausible that benefits could also accrue to plaintiffs, broadcasters, andadvertisers, as the Betamax makes it possible for more persons to view their broadcasts." Ibid.
"No likelihood of harm was shown at trial, and plaintiffs admitted that there had been no actual
harm to date." Id., at 468-469. "Testimony at trial suggested that Betamax may require
adjustments in marketing strategy, but it did not establish even a likelihood of harm." Id., at469. "Television production by plaintiffs today is more profitable than it has ever been, and, infive weeks of trial, there was no concrete evidence to suggest that the Betamax will change
the studios' financial picture." Ibid.
The District Court's conclusions are buttressed by the fact that to the extent time-shifting
expands public access to freely broadcast television programs, it yields societal benefits. In
Community Television of Southern California v. Gottfried, 459 U.S. 498, 508, n. 12 (1983), we
acknowledged the public interest in making television broadcasting more available.
Concededly, that interest is not unlimited. But it supports an interpretation of the concept of"fair use" that requires the copyright holder to demonstrate some likelihood of harm before hemay condemn a private act of time-shifting as a violation of federal law.
When these factors are all weighed in the "equitable rule of reason" balance, we must conclude
that this record amply supports the District Court's conclusion that home time-shifting is fairuse. In light of the findings of the District Court regarding the state of the empirical data, it isclear that the Court of Appeals erred in holding that the statute as presently written bars suchconduct. n40
n40 The Court of Appeals chose not to engage in any "equitable rule of reason"
analysis in this case. Instead, it assumed that the category of "fair use" is rigidly
circumscribed by a requirement that every such use must be "productive." It therefore
concluded that copying a television program merely to enable the viewer to receive
information or entertainment that he would otherwise miss because of a personalscheduling conflict could never be fair use. That understanding of "fair use" waserroneous.
Congress has plainly instructed us that fair use analysis calls for a sensitive balancing
of interests. The distinction between "productive" and "unproductive" uses may be
helpful in calibrating the balance, but it cannot be wholly determinative. Althoughcopying to promote a scholarly endeavor certainly has a stronger claim to fair use thancopying to avoid interrupting a poker game, the question is not simply two-dimensional.
For one thing, it is not true that all copyrights are fungible. Some copyrights governmaterial with broad potential secondary markets. Such material may well have abroader claim to protection because of the greater potential for commercial harm.
Copying a news broadcast may have a stronger claim to fair use than copying a motion
picture. And, of course, not all uses are fungible. Copying for commercial gain has amuch weaker claim to fair use than copying for personal enrichment. But the notion ofsocial "productivity" cannot be a complete answer to this analysis. A teacher who copies
to prepare lecture notes is clearly productive. But so is a teacher who copies for thesake of broadening his personal understanding of his specialty. Or a legislator who
copies for the sake of broadening her understanding of what her constituents are24

watching; or a constituent who copies a news program to help make a decision on how
to vote.
Making a copy of a copyrighted work for the convenience of a blind person isexpressly identified by the House Committee Report as an example of fair use, with nosuggestion that anything more than a purpose to entertain or to inform need motivate
the copying. In a hospital setting, using a VTR to enable a patient to see programs hewould otherwise miss has no productive purpose other than contributing to thepsychological well-being of the patient. Virtually any time-shifting that increases viewer
access to television programming may result in a comparable benefit. The statutory
language does not identify any dichotomy between productive and nonproductive timeshifting, but does require consideration of the economic consequences of copying.
In summary, the record and findings of the District Court lead us to two conclusions. First,
Sony demonstrated a significant likelihood that substantial numbers of copyright holders wholicense their works for broadcast on free television would not object to having their broadcasts
time-shifted by private viewers. And second, respondents failed to demonstrate that timeshifting would cause any likelihood of nonminimal harm to the potential market for, or thevalue of, their copyrighted works. The Betamax is, therefore, capable of substantial
noninfringing uses. Sony's sale of such equipment to the general public does not constitutecontributory infringement of respondents' copyrights.
V"The direction of Art. I is that Congress shall have the power to promote the progress ofscience and the useful arts. When, as here, the Constitution is permissive, the sign of how far
Congress has chosen to go can come only from Congress." Deepsouth Packing Co. v. Laitram
Corp., 406 U.S. 518, 530 (1972).
One may search the Copyright Act in vain for any sign that the elected representatives ofthe millions of people who watch television every day have made it unlawful to copy a program
for later viewing at home, or have enacted a flat prohibition against the sale of machines thatmake such copying possible.
It may well be that Congress will take a fresh look at this new technology, just as it sooften has examined other innovations in the past. But it is not our job to apply laws that have
not yet been written. Applying the copyright statute, as it now reads, to the facts as they havebeen developed in this case, the judgment of the Court of Appeals must be reversed.
It is so ordered.
DISSENTBY:BLACKMUN
DISSENT:JUSTICE BLACKMUN, with whom JUSTICE MARSHALL, JUSTICE POWELL, and JUSTICEREHNQUIST join, dissenting.
A restatement of the facts and judicial history of this case is necessary, in my view, for aproper focus upon the issues. Respondents' position is hardly so "unprecedented," ante, at
421, in the copyright law, nor does it really embody a "gross generalization," ante, at 436, or a"novel theory of liability," ante, at 437, and the like, as the Court, in belittling their claims,
describes the efforts of respondents.

25

I
The introduction of the home videotape recorder (VTR) upon the market has enabled
millions of Americans to make recordings of television programs in their homes, for future andrepeated viewing at their own convenience. While this practice has proved highly popular withowners of television sets and VTR's, it understandably has been a matter of concern for theholders of copyrights in the recorded programs. A result is the present litigation, raising theissues whether the home recording of a copyrighted television program is an infringement of
the copyright, and, if so, whether the manufacturers and distributors of VTR's are liable ascontributory infringers. I would hope that these questions ultimately will be consideredseriously and in depth by the Congress and be resolved there, despite the fact that the Court's
decision today provides little incentive for congressional action. Our task in the meantime,
however, is to resolve these issues as best we can in the light of ill-fitting existing copyrightlaw.
It is no answer, of course, to refer to and stress, as the Court does, this Court's"consistent deference to Congress" whenever "major technological innovations" appear. Ante,at 431. Perhaps a better and more accurate description is that the Court has tended to evadethe hard issues when they arise in the area of copyright law. I see no reason for the Court tobe particularly pleased with this tradition or to continue it. Indeed, it is fairly clear from thelegislative history of the 1976 Act that Congress meant to change the old pattern and enact astatute that would cover new technologies, as well as old.
II
In 1976, respondents Universal City Studios, Inc., and Walt Disney Productions (Studios)brought this copyright infringement action in the United States District Court for the Central
District of California against, among others, petitioners Sony Corporation, a Japanese
corporation, and Sony Corporation of America, a New York corporation, the manufacturer anddistributor, respectively, of the Betamax VTR. The Studios sought damages, profits, and awide-ranging injunction against further sales or use of the Betamax or Betamax tapes.
The Betamax, like other VTR's, presently is capable of recording television broadcasts off
the air on videotape cassettes, and playing them back at a later time. n1 Two kinds ofBetamax usage are at issue here. n2 The first is "time-shifting," whereby the user records a
program in order to watch it at a later time, and then records over it, and thereby erases the
program, after a single viewing. The second is "library-building," in which the user records a
program in order to keep it for repeated viewing over a longer term. Sony's advertisements,
at various times, have suggested that Betamax users "record favorite shows" or "build alibrary." Sony's Betamax advertising has never contained warnings about copyright
infringement, although a warning does appear in the Betamax operating instructions.
n1 The Betamax has three primary components: a tuner that receives television("RF") signals broadcast over the airwaves; an adapter that converts the RF signals into
audio-video signals; and a recorder that places the audio-video signals on magnetic tape.
Sony also manufactures VTR's without built-in tuners; these are capable of playing backprerecorded tapes and recording home movies on videotape, but cannot record off theair. Since the Betamax has its own tuner, it can be used to record off one channel while
another channel is being watched.
The Betamax is available with auxiliary features, including a timer, a pause control,
and a fast-forward control, these allow Betamax owners to record programs without
being present, to avoid (if they are present) recording commercial messages, and to skip

26

over commercials while playing back the recording. Videotape is reusable; the user
erases its record by recording over it.

n2 This case involves only the home recording for home use of television programs
broadcast free over the airwaves. No issue is raised concerning cable or pay television,or the sharing or trading of tapes.
The Studios produce copyrighted "movies" and other works that they release to theaters
and license for television broadcast. They also rent and sell their works on film and on
prerecorded videotapes and videodiscs. License fees for television broadcasts are set
according to audience ratings, compiled by rating services that do not measure any playbacksof videotapes. The Studios make the serious claim that VTR recording may result in adecrease in their revenue from licensing their works to television and from marketing them inother ways.
After a 5-week trial, the District Court, with a detailed opinion, ruled that home VTR
recording did not infringe the Studios' copyrights under either the Act of Mar. 4, 1909 (1909
Act), 35 Stat. 1075, as amended (formerly codified as 17 U. S. C. ß 1 et seq.), or the
Copyright Revision Act of 1976 (1976 Act), 90 Stat. 2541, 17 U. S. C. ß 101 et seq. (1982ed.). n3 The District Court also held that even if home VTR recording were an infringement,
Sony could not be held liable under theories of direct infringement, contributory infringement,
or vicarious liability. Finally, the court concluded that an injunction against sales of the
Betamax would be inappropriate even if Sony were liable under one or more of those theories.
480 F.Supp. 429 (1979).
n3 At the trial, the Studios proved 32 individual instances where their copyrighted
works were recorded on Betamax VTR's. Two of these instances occurred after January
1, 1978, the primary effective date of the 1976 Act; all the others occurred while the1909 Act was still effective. My analysis focuses primarily on the 1976 Act, but the
principles governing copyright protection for these works are the same under either Act.
The United States Court of Appeals for the Ninth Circuit reversed in virtually every respect.
659 F.2d 963 (1981). It held that the 1909 Act and the 1976 Act contained no implied
exemption for "home use" recording, that such recording was not "fair use," and that the useof the Betamax to record the Studios' copyrighted works infringed their copyrights. The Courtof Appeals also held Sony liable for contributory infringement, reasoning that Sony knew andanticipated that the Betamax would be used to record copyrighted material off the air, and that
Sony, indeed, had induced, caused, or materially contributed to the infringing conduct. The
Court of Appeals remanded the case to the District Court for appropriate relief; it suggested
that the District Court could consider the award of damages or a continuing royalty in lieu of an
injunction. Id., at 976.
III
The Copyright Clause of the Constitution, Art. I, ß 8, cl. 8, empowers Congress "To
promote the Progress of Science and useful Arts, by securing for limited Times to Authors andInventors the exclusive Right to their respective Writings and Discoveries." This Nation's initial
copyright statute was passed by the First Congress. Entitled "An Act for the encouragement oflearning," it gave an author "the sole right and liberty of printing, reprinting, publishing andvending" his "map, chart, book or books" for a period of 14 years. Act of May 31, 1790, ß 1,27

1 Stat. 124. Since then, as the technology available to authors for creating and preserving
their writings has changed, the governing statute has changed with it. By many amendments,
and by complete revisions in 1831, 1870, 1909, and 1976, n4 authors' rights have been
expanded to provide protection to any "original works of authorship fixed in any tangible
medium of expression," including "motion pictures and other audiovisual works." 17 U. S. C. ß
102(a) (1982 ed.). n5
n4 Act of Feb. 3, 1831, ch. 16, 4 Stat. 436; Act of July 8, 1870, ß ß 85-111, 16 Stat.
212-217; Act of Mar. 4, 1909, 35 Stat. 1075 (formerly codified as 17 U. S. C. ß 1 etseq.); Copyright Revision Act of 1976, 90 Stat. 2541 (codified as 17 U. S. C. ß 101 et
seq. (1982 ed.)).
n5 Section 102(a) provides:"Copyright protection subsists, in accordance with this title, in original works ofauthorship fixed in any tangible medium of expression, now known or later developed,from which they can be perceived, reproduced, or otherwise communicated, either
directly or with the aid of a machine or device. Works of authorship include the following
categories:"(1) literary works;"(2) musical works, including any accompanying words;"(3) dramatic works, including any accompanying music;"(4) pantomimes and choreographic works;"(5) pictorial, graphic, and sculptural works;"(6) motion pictures and other audiovisual works; and"(7) sound recordings."
Definitions of terms used in ß 102(a)(6) are provided by ß 101: "Audiovisual works" are"works that consist of a series of related images which are intrinsically intended to beshown by the use of machines, or devices such as projectors, viewers, or electronicequipment, together with accompanying sounds, if any, regardless of the nature of thematerial objects, such as films or tapes, in which the works are embodied." And "motion
pictures" are "audiovisual works consisting of a series of related images which, whenshown in succession, impart an impression of motion, together with accompanying
sounds, if any." Most commercial television programs, if fixed on film or tape at the timeof broadcast or before, qualify as "audiovisual works." Since the categories set forth in ß
102(a) are not mutually exclusive, a particular television program may also qualify forprotection as a dramatic, musical, or other type of work.
Section 106 of the 1976 Act grants the owner of a copyright a variety of exclusive rights inthe copyrighted work, n6 including the right "to reproduce the copyrighted work in copies orphonorecords." n7 This grant expressly is made subject to ß ß 107-118, which create anumber of exemptions and limitations on the copyright owner's rights. The most important ofthese sections, for present purposes, is ß 107; that section states that "the fair use of a
copyrighted work . . . is not an infringement of copyright." n8n6 Section 106 provides:

28

"Subject to sections 107 through 118, the owner of copyright under this title has the
exclusive rights to do and to authorize any of the following:"(1) to reproduce the copyrighted work in copies or phonorecords;"(2) to prepare derivative works based upon the copyrighted work;"(3) to distribute copies or phonorecords of the copyrighted work to the public by saleor other transfer of ownership, or by rental, lease, or lending;"(4) in the case of literary, musical, dramatic, and choreographic works, pantomimes,
and motion pictures and other audiovisual works, to perform the copyrighted work
publicly; and"(5) in the case literary, musical, dramatic, and choreographic works, pantomimes,
and pictorial, graphic, or sculptural works, including the individual images of a motion
picture or other audiovisual work, to display the copyrighted work publicly."

n7 A "phonorecord" is defined by ß 101 as a reproduction of sounds other thansounds accompanying an audiovisual work, while a "copy" is a reproduction of a work in
any form other than a phonorecord.
n8 Section 107 provides:"Notwithstanding the provisions of section 106, the fair use of a copyrighted work,
including such use by reproduction in copies or phonorecords or by any other means
specified by that section, for purposes such as criticism, comment, news reporting,teaching (including multiple copies for classroom use), scholarship, or research, is not an
infringement of copyright. In determining whether the use made of a work in any
particular case is a fair use the factors to be considered shall include -"(1) the purpose and character of the use, including whether such use is of acommercial nature or is for nonprofit educational purposes;"(2) the nature of the copyrighted work;"(3) the amount and substantiality of the portion used in relation to the copyrighted
work as a whole; and"(4) the effect of the use upon the potential market for or value of the copyrighted
work."
Section 101 makes it clear that the four factors listed in this section are "illustrative andnot limitative."
The 1976 Act, like its predecessors, n9 does not give the copyright owner full andcomplete control over all possible uses of his work. If the work is put to some use notenumerated in ß 106, the use is not an infringement. See Fortnightly Corp. v. United Artists
Television, Inc., 392 U.S. 390, 393-395 (1968). Thus, before considering whether home
videotaping comes within the scope of the fair use exemption, one first must inquire whether
the practice appears to violate the exclusive right, granted in the first instance by ß 106(1),"to reproduce the copyrighted work in copies or phonorecords."

29

n9 The 1976 Act was the product of a revision effort lasting more than 20 years.
Spurred by the recognition that "significant developments in technology andcommunications" had rendered the 1909 Act inadequate, S. Rep. No. 94-473, p. 47(1975); see H. R. Rep. No. 94-1476, p. 47 (1976), Congress in 1955 authorized the
Copyright Office to prepare a series of studies on all aspects of the existing copyrightlaw. Thirty-four studies were prepared and presented to Congress. The Register of
Copyrights drafted a comprehensive report with recommendations, House Committee on
the Judiciary, Copyright Law Revision, Report of the Register of Copyrights on the
General Revision of the U.S. Copyright Law, 87th Cong., 1st Sess. (Comm. Print 1961)(Register's 1961 Report), and general revision bills were introduced near the end of the88th Congress in 1964. H. R. 11947/S. 3008, 88th Cong., 2d Sess. (1964). The
Register issued a second report in 1965, with revised recommendations. House
Committee on the Judiciary, Copyright Law Revision, pt. 6, Supplementary Report of theRegister of Copyrights on the General Revision of the U.S. Copyright Law: 1965 Revision
Bill, 89th Cong., 1st Sess. (Comm. Print 1965) (Register's Supplementary Report).
Action on copyright revision was delayed from 1967 to 1974 by a dispute on cable
television, see generally Second Supplementary Report of the Register of Copyrights on
the General Revision of the U.S. Copyright Law: 1975 Revision Bill, ch. V, pp. 2-26 (Draft
Oct.-Dec. 1975) (Register's Second Supplementary Report), but a compromise led topassage of the present Act in 1976.
A
Although the word "copies" is in the plural in ß 106(1), there can be no question that
under the Act the making of even a single unauthorized copy is prohibited. The Senate andHouse Reports explain: "The references to 'copies or phonorecords,' although in the plural, areintended here and throughout the bill to include the singular (1 U. S. C. ß 1)." n10 S. Rep.
No. 94-473, p. 58 (1975) (1975 Senate Report); H. R. Rep. No. 94-1476, p. 61 (1976) (1976House Report). The Reports then describe the reproduction right established by ß 106(1):"[The] right 'to reproduce the copyrighted work in copies or phonorecords' means the right toproduce a material object in which the work is duplicated, transcribed, imitated, or simulated
in a fixed form from which it can be 'perceived, reproduced, or otherwise communicated, either
directly or with the aid of a machine or device.' As under the present law, a copyrighted work
would be infringed by reproducing it in whole or in any substantial part, and by duplicating itexactly or by imitation or simulation." 1975 Senate Report 58; 1976 House Report 61.
The making of even a single videotape recording at home falls within this definition; the VTR
user produces a material object from which the copyrighted work later can be perceived.
Unless Congress intended a special exemption for the making of a single copy for personal use,
I must conclude that VTR recording is contrary to the exclusive rights granted by ß 106(1).
n10 Title 1 U. S. C. ß 1 provides in relevant part:"In determining the meaning of any Act of Congress, unless the context indicatesotherwise . . . words importing the plural include the singular . . . ."The 1976 Act and its accompanying Reports specify in some detail the situations in which asingle copy of a copyrighted work may be made without infringement concerns. Section
108(a), for example, permits a library or archives "to reproduce no more than one copy orphonorecord of a work" for a patron, but only under very limited conditions; an entire work,
moreover, can be copied only if it cannot be obtained elsewhere at a fair price. n11 ß 108(e);30see also ß 112(a) (broadcaster may "make no more than one copy or phonorecord of aparticular transmission program," and only under certain conditions). In other respects, themaking of single copies is permissible only within the limited confines of the fair use doctrine.
The Senate Report, in a section headed "Single and multiple copying," notes that the fair use
doctrine would permit a teacher to make a single copy of a work for use in the classroom, but
only if the work was not a "sizable" one such as a novel or treatise. 1975 Senate Report 6364; accord, 1976 House Report 68-69, 71. Other situations in which the making of a single
copy would be fair use are described in the House and Senate Reports. n12 But neither the
statute nor its legislative history suggests any intent to create a general exemption for a single
copy made for personal or private use.
n11 The library photocopying provisions of ß 108 do not excuse any person who
requests "a copy" from a library if the requester's use exceeds fair use. ß 108(f)(2).
Moreover, a library is absolved from liability for the unsupervised use of its copying
equipment provided that the equipment bears a notice informing users that "the making
of a copy" may violate the copyright law. ß 108(f)(1).

n12 For example, "the making of a single copy or phonorecord by an individual as afree service for a blind person" would be a fair use, as would "a single copy reproductionof an excerpt from a copyrighted work by a calligrapher for a single client" or "a single
reproduction of excerpts from a copyrighted work by a student calligrapher or teacher ina learning situation." 1975 Senate Report 66-67; see 1976 House Report 73-74.
Application of the fair use doctrine in these situations, of course, would be unnecessary if
the 1976 Act created a general exemption for the making of a single copy.
Indeed, it appears that Congress considered and rejected the very possibility of a special
private use exemption. The issue was raised early in the revision process, in one of the studies
prepared for Congress under the supervision of the Copyright Office. A. Latman, Fair Use of
Copyrighted Works (1958), reprinted in Study No. 14 for the Senate Committee on the
Judiciary, Copyright Law Revision, Studies Prepared for the Subcommittee on Patents,
Trademarks, and Copyrights, 86th Cong., 2d Sess., 1 (1960) (Latman Fair Use Study). This
study found no reported case supporting the existence of an exemption for private use,although it noted that "the purpose and nature of a private use, and in some cases the small
amount taken, might lead a court to apply the general principles of fair use in such a way as todeny liability." Id., at 12. After reviewing a number of foreign copyright laws that contained
explicit statutory exemptions for private or personal use, id., at 25, Professor Latman outlined
several approaches that a revision bill could take to the general issue of exemptions and fairuse. One of these was the adoption of particularized rules to cover specific situations, including"the field of personal use." Id., at 33. n13
n13 Professor Latman made special mention of the "personal use" issue because thearea was one that "has become disturbed by recent developments . . . .
Photoduplication devices may make authors' and publishers' groups apprehensive. The
Copyright Charter recently approved by [the International Confederation of Societies of
Authors and Composers] emphasizes the concern of authors over 'private' uses which,because of technological developments, are said to be competing seriously with theauthor's economic interests." Latman Fair Use Study 33-34.

31

Rejecting the latter alternative, the Register of Copyrights recommended that the revised
copyright statute simply mention the doctrine of fair use and indicate its general scope. The
Register opposed the adoption of rules and exemptions to cover specific situations, n14preferring, instead, to rely on the judge-made fair use doctrine to resolve new problems as
they arose. See Register's 1961 Report 25; Register's Supplementary Report 27-28.
n14 The one exemption proposed by the Register, permitting a library to make asingle photocopy of an out-of-print work and of excerpts that a requester certified wereneeded for research, met with opposition and was not included in the bills initiallyintroduced in Congress. See Register's 1961 Report 26; H. R. 11947/S. 3008, 88th
Cong., 2d Sess. (1964); Register's Supplementary Report 26. A library copying provision
was restored to the bill in 1969, after pressure from library associations. Register's
Second Supplementary Report, ch. III, pp. 10-11; see S. 543, 91st Cong., 1st Sess., ß
108 (Comm. Print, Dec. 10, 1969); 1975 Senate Report 48.
The Register's approach was reflected in the first copyright revision bills, drafted by the
Copyright Office in 1964. These bills, like the 1976 Act, granted the copyright owner the
exclusive right to reproduce the copyrighted work, subject only to the exceptions set out inlater sections. H. R. 11947/S. 3008, 88th Cong., 2d Sess., ß 5(a) (1964). The primary
exception was fair use, ß 6, containing language virtually identical to ß 107 of the 1976 Act.
Although the copyright revision bills underwent change in many respects from their first
introduction in 1964 to their final passage in 1976, these portions of the bills did not change.
n15 I can conclude only that Congress, like the Register, intended to rely on the fair use
doctrine, and not on a per se exemption for private use, to separate permissible copying fromthe impermissible. n16
n15 The 1964 bills provided that the fair use of copyrighted material for purposes"such as criticism, comment, news reporting, teaching, scholarship, or research" was not
an infringement of copyright, and listed four "factors to be considered" in determining
whether any other particular use was fair. H. R. 11947/S. 3008, 88th Cong., 2d Sess., ß
6 (1964). Revised bills, drafted by the Copyright Office in 1965, contained a fair use
provision merely mentioning the doctrine but not indicating its scope: "Notwithstanding
the provisions of section 106, the fair use of a copyrighted work is not an infringement of
copyright." H. R. 4347/S. 1006, 89th Cong., 1st Sess., ß 107 (1965). The House
Judiciary Committee restored the provision to its earlier wording, H. R. Rep. No. 2237,
89th Cong., 2d Sess., 5, 58 (1966), and the language adopted by the Committee
remained in the bill in later Congresses. See H. R. 2512/S. 597, 90th Cong., 1st Sess., ß
107 (1967); S. 543, 91st Cong., 1st Sess., ß 107 (1969); S. 644, 92d Cong., 1st Sess.,ß 107 (1971); S. 1361, 93d Cong., 1st Sess., ß 107 (1973); H. R. 2223/S. 22, 94th
Cong., 1st Sess., ß 107 (1975). With a few additions by the House Judiciary Committee
in 1976, see 1976 House Report 5; H. R. Conf. Rep. No. 94-1733, p. 70 (1976), thesame language appears in ß 107 of the 1976 Act.

n16 In Williams & Wilkins Co. v. United States, 203 Ct. Cl. 74, 487 F.2d 1345 (1973),
aff'd by an equally divided Court, 420 U.S. 376 (1975), decided during the process of therevision of the copyright statutes, the Court of Claims suggested that copying for
personal use might be outside the scope of copyright protection under the 1909 Act. The
court reasoned that because "hand copying" for personal use has always been regarded32as permissible, and because the practice of making personal copies continued after
typewriters and photostat machines were developed, the making of personal copies bymeans other than hand copying should be permissible as well. 203 Ct. Cl., at 84-88, 487
F.2d, at 1350-1352.
There appear to me to be several flaws in this reasoning. First, it is by no means
clear that the making of a "hand copy" of an entire work is permissible; the most thatcan be said is that there is no reported case on the subject, possibly because no
copyright owner ever thought it worthwhile to sue. See Latman Fair Use Study 11-12; 3
M. Nimmer, Copyright ß 13.05[E][4][a] (1983). At least one early treatise asserted that
infringement would result "if an individual made copies for his personal use, even in his
own handwriting, as there is no rule of law excepting manuscript copies from the law of
infringement." A. Weil, American Copyright Law ß 1066 (1917). Second, hand copying
or even copying by typewriter is self-limiting. The drudgery involved in making handcopies ordinarily ensures that only necessary and fairly small portions of a work aretaken; it is unlikely that any user would make a hand copy as a substitute for one that
could be purchased. The harm to the copyright owner from hand copying thus isminimal. The recent advent of inexpensive and readily available copying machines,
however, has changed the dimensions of the problem. See Register's Second
Supplementary Report, ch. III, p. 3; Hearings on H. R. 2223 before the Subcommittee on
Courts, Civil Liberties, and the Administration of Justice of the House Committee on the
Judiciary, 94th Cong., 1st Sess., 194 (1975) (1975 House Hearings) (remarks of Rep.
Danielson); id., at 234 (statement of Robert W. Cairns); id., at 250 (remarks of Rep.
Danielson); id., at 354 (testimony of Irwin Karp); id., at 467 (testimony of Rondo
Cameron); id., at 1795 (testimony of Barbara Ringer, Register of Copyrights). Thus,"[the] supposition that there is no tort involved in a scholar copying a copyrighted text
by hand does not much advance the question of machine copying." B. Kaplan, An
Unhurried View of Copyright 101-102 (1967).
When Congress intended special and protective treatment for private use, moreover, it
said so explicitly. One such explicit statement appears in ß 106 itself. The copyright owner's
exclusive right to perform a copyrighted work, in contrast to his right to reproduce the work incopies, is limited. Section 106(4) grants a copyright owner the exclusive right to perform thework "publicly," but does not afford the owner protection with respect to private performancesby others. A motion picture is "performed" whenever its images are shown or its sounds are
made audible. ß 101. Like "[singing] a copyrighted lyric in the shower," Twentieth Century
Music Corp. v. Aiken, 422 U.S. 151, 155 (1975), watching television at home with one's family
and friends is now considered a performance. 1975 Senate Report 59-60; 1976 House Report
63. n17 Home television viewing nevertheless does not infringe any copyright -- but only
because ß 106(4) contains the word "publicly." n18 See generally 1975 Senate Report 60-61;
1976 House Report 63-64; Register's 1961 Report 29-30. No such distinction between public
and private uses appears in ß 106(1)'s prohibition on the making of copies. n19
n17 In a trio of cases, Fortnightly Corp. v. United Artists Television, Inc., 392 U.S.
390, 398 (1968); Teleprompter Corp. v. Columbia Broadcasting System, Inc., 415 U.S.
394, 403-405 (1974); and Twentieth Century Music Corp. v. Aiken, 422 U.S. 151 (1975),
this Court had held that the reception of a radio or television broadcast was not a"performance" under the 1909 Act. The Court's "narrow construction" of the word
"perform" was "completely overturned by the [1976 Act] and its broad definition of'perform' in section 101." 1976 House Report 87.

33

n18 A work is performed "publicly" if it takes place "at a place open to the public or
at any place where a substantial number of persons outside of a normal circle of a family
and its social acquaintances is gathered." ß 101.
n19 One purpose of the exemption for private performances was to permit the homeviewing of lawfully made videotapes. The Register noted in 1961 that "[new] technicaldevices will probably make it practical in the future to reproduce televised motion
pictures in the home. We do not believe the private use of such a reproduction can orshould be precluded by copyright." Register's 1961 Report 30 (emphasis added). The
Register did not suggest that the private making of a reproduction of a televised motion
picture would be permitted by the copyright law. The Register later reminded Congressthat "[in] general the concept of 'performance' must be distinguished sharply from thereproduction of copies." Register's Supplementary Report 22.
Similarly, an explicit reference to private use appears in ß 108. Under that section, alibrary can make a copy for a patron only for specific types of private use: "private study,scholarship, or research." n20 ß ß 108(d)(1) and (e)(1); see 37 CFR ß 201.14(b) (1983).
Limits also are imposed on the extent of the copying and the type of institution that may makecopies, and the exemption expressly is made inapplicable to motion pictures and certain othertypes of works. ß 108(h). These limitations would be wholly superfluous if an entire copy of
any work could be made by any person for private use. n21
n20 During hearings on this provision, Representative Danielson inquired whether it
would apply to works of fiction such as "Gone With the Wind," or whether it was limited
to "strictly technical types of information." The uncontradicted response was that it would
apply only in "general terms of science . . . [and] the useful arts." 1975 House Hearings
251 (testimony of Robert W. Cairns); cf. id., at 300 (statement of Harry Rosenfield) ("Weare not asking . . . for the right to copy 'Gone With the Wind'").

n21 The mention in the Senate and House Reports of situations in which copies forprivate use would be permissible under the fair use doctrine -- for example, the making
of a free copy for a blind person, 1975 Senate Report 66; 1976 House Report 73, or the"recordings of performances by music students for purposes of analysis and criticism,"1975 Senate Report 63 -- would be superfluous as well. See n. 12, supra.
B
The District Court in this case nevertheless concluded that the 1976 Act contained an
implied exemption for "home-use recording." 480 F.Supp., at 444-446. The court reliedprimarily on the legislative history of a 1971 amendment to the 1909 Act, a reliance that thisCourt today does not duplicate. Ante, at 430, n. 11. That amendment, however, wasaddressed to the specific problem of commercial piracy of sound recordings. Act of Oct. 15,
1971, 85 Stat. 391 (1971 Amendment). The House Report on the 1971 Amendment, in asection entitled "Home Recording," contains the following statement:"In approving the creation of a limited copyright in sound recordings it is the intention of
the Committee that this limited copyright not grant any broader rights than are accorded toother copyright proprietors under the existing title 17. Specifically, it is not the intention of theCommittee to restrain the home recording, from broadcasts or from tapes or records, ofrecorded performances, where the home recording is for private use and with no purpose of34

reproducing or otherwise capitalizing commercially on it. This practice is common andunrestrained today, and the record producers and performers would be in no different position
from that of the owners of copyright in recorded musical compositions over the past 20 years."
H. R. Rep. No. 92-487, p. 7 (1971) (1971 House Report).
Similar statements were made during House hearings on the bill n22 and on the House floor,
n23 although not in the Senate proceedings. In concluding that these statements created ageneral exemption for home recording, the District Court, in my view, paid too little heed tothe context in which the statements were made, and failed to consider the limited purpose of
the 1971 Amendment and the structure of the 1909 Act.
n22 The following exchange took place during the testimony of Barbara Ringer, thenAssistant Register of Copyrights:"[Rep.] BIESTER. . . . I can tell you I must have a small pirate in my own home. My
son has a cassette tape recorder, and as a particular record becomes a hit, he will
retrieve it onto his little set. . . . [This] legislation, of course, would not point to his
activities, would it?
"Miss RINGER. I think the answer is clearly, 'No, it would not.' I have spoken at a
couple of seminars on video cassettes lately, and this question is usually asked: 'What
about the home recorders?' The answer I have given and will give again is that this issomething you cannot control. You simply cannot control it. My own opinion, whether
this is philosophical dogma or not, is that sooner or later there is going to be a crunch
here. But that is not what this legislation is addressed to, and I do not see the crunch
coming in the immediate future. . . . I do not see anybody going into anyone's homeand preventing this sort of thing, or forcing legislation that would engineer a piece ofequipment not to allow home taping." Hearings on S. 646 and H. R. 6927 before
Subcommittee No. 3 of the House Committee on the Judiciary, 92d Cong., 1st Sess., 2223 (1971) (1971 House Hearings).

n23 Shortly before passage of the bill, a colloquy took place between Representative
Kastenmeier, Chairman of the House Subcommittee that produced the bill, andRepresentative Kazen, who was not on the Subcommittee:"Mr. KAZEN. Am I correct in assuming that the bill protects copyrighted material thatis duplicated for commercial purposes only?
"Mr. KASTENMEIER. Yes.
"Mr. KAZEN. In other words, if your child were to record off of a program whichcomes through the air on the radio or television, and then used it for her own personal
pleasure, for listening pleasure, this use would not be included under the penalties of thisbill?
"Mr. KASTENMEIER. This is not included in the bill. I am glad the gentleman raises
the point.
"On page 7 of the report, under 'Home Recordings,' Members will note that under thebill the same practice which prevails today is called for; namely, this is considered bothpresently and under the proposed law to be fair use. The child does not do this forcommercial purposes. This is made clear in the report." 117 Cong. Rec. 34748-34749(1971).

35

Unlike television broadcasts and other types of motion pictures, sound recordings were notprotected by copyright prior to the passage of the 1971 Amendment. Although the underlying
musical work could be copyrighted, the 1909 Act provided no protection for a particularperformer's rendition of the work. Moreover, copyrighted musical works that had beenrecorded for public distribution were subject to a "compulsory license": any person was free torecord such a work upon payment of a 2-cent royalty to the copyright owner. ß 1(e), 35 Stat.
1075-1076. While reproduction without payment of the royalty was an infringement under the1909 Act, damages were limited to three times the amount of the unpaid royalty. ß 25(e), 35
Stat. 1081-1082; Shapiro, Bernstein & Co. v. Goody, 248 F.2d 260, 262-263, 265 (CA2 1957),
cert. denied, 355 U.S. 952 (1958). It was observed that the practical effect of these provisions
was to legalize record piracy. See S. Rep. No. 92-72, p. 4 (1971); 1971 House Report 2.
In order to suppress this piracy, the 1971 Amendment extended copyright protection
beyond the underlying work and to the sound recordings themselves. Congress chose,
however, to provide only limited protection: owners of copyright in sound recordings were
given the exclusive right "[to] reproduce [their works] and distribute [them] to the public."
1971 Amendment, ß 1(a), 85 Stat. 391 (formerly codified as 17 U. S. C. ß 1(f)). n24 This
right was merely the right of commercial distribution. See 117 Cong. Rec. 34748-34749(1971) (colloquy of Reps. Kazen and Kastenmeier) ("the bill protects copyrighted material thatis duplicated for commercial purposes only").
n24 The 1909 Act's grant of an exclusive right to "copy," ß 1(a), was of no
assistance to the owner of a copyright in a sound recording, because a reproduction of asound recording was technically considered not to be a "copy." See 1971 House Hearings
18 (testimony of Barbara Ringer, Assistant Register of Copyrights); 1971 Amendment, ß1(e), 85 Stat. 391 (formerly codified as 17 U. S. C. ß 26) ("For the purposes of[specified sections, not including ß 1(a)], but not for any other purpose, a reproductionof a [sound recording] shall be considered to be a copy thereof"). This concept is carriedforward into the 1976 Act, which distinguishes between "copies" and "phonorecords."
See n. 7, supra.
Against this background, the statements regarding home recording under the 1971
Amendment appear in a very different light. If home recording was "common andunrestrained" under the 1909 Act, see 1971 House Report 7, it was because sound recordings
had no copyright protection and the owner of a copyright in the underlying musical work could
collect no more than a 2-cent royalty plus 6 cents in damages for each unauthorized use. Withso little at stake, it is not at all surprising that the Assistant Register "[did] not see anybody
going into anyone's home and preventing this sort of thing." 1971 House Hearings 23.
But the references to home sound recording in the 1971 Amendment's legislative history
demonstrate no congressional intent to create a generalized home-use exemption from
copyright protection. Congress, having recognized that the 1909 Act had been unsuccessful incontrolling home sound recording, addressed only the specific problem of commercial record
piracy. To quote Assistant Register Ringer again, home use was "not what this legislation[was] addressed to." Id., at 22. n25
n25 During consideration of the 1976 Act, Congress, of course, was well aware of thelimited nature of the protection granted to sound recordings under the 1971
Amendment. See 1975 House Hearings 113 (testimony of Barbara Ringer, Register of36

Copyrights) (1971 Amendment "created a copyright in a sound recording . . . but limited
it to the particular situation of so-called piracy"); id., at 1380 (letter from John Lorenz,
Acting Librarian of Congress) (under 1971 Amendment "only the unauthorized
reproduction and distribution to the public of copies of the sound recording is prohibited.
Thus, the duplication of sound recordings for private, personal use and the performanceof sound recordings through broadcasting or other means are outside the scope of theamendment").
While the 1971 Amendment narrowed the sound recordings loophole in then existing
copyright law, motion pictures and other audiovisual works have been accorded full copyrightprotection since at least 1912, see Act of Aug. 24, 1912, 37 Stat. 488, and perhaps before, see
Edison v. Lubin, 122 F. 240 (CA3 1903), appeal dism'd, 195 U.S. 625 (1904). Congresscontinued this protection in the 1976 Act. Unlike the sound recording rights created by the1971 Amendment, the reproduction rights associated with motion pictures under ß 106(1) are
not limited to reproduction for public distribution; the copyright owner's right to reproduce thework exists independently, and the "mere duplication of a copy may constitute an infringement
even if it is never distributed." Register's Supplementary Report 16; see 1975 Senate Report
57 and 1976 House Report 61. Moreover, the 1976 Act was intended as a comprehensive
treatment of all aspects of copyright law. The Reports accompanying the 1976 Act, unlike the1971 House Report, contain no suggestion that home-use recording is somehow outside thescope of this all-inclusive statute. It was clearly the intent of Congress that no additional
exemptions were to be implied. n26
n26 Representative Kastenmeier, the principal House sponsor of the 1976 revision billand Chairman of the House Subcommittee that produced it, made this explicit on the
opening day of the House hearings:"[From] time to time, certain areas have not been covered in the bill. But is it not
the case, this being a unified code, that the operation of the bill does apply whether or
not we specifically deal with a subject or not? . . .
"Therefore, we can really not fail to deal with an issue. It will be dealt with one way
or the other. The code, title 17, will cover it. So we have made a conscientious decisioneven by omission. . . .
....
". . . By virtue of passing this bill, we will deal with every issue. Whether we deal
with it completely or not for the purpose of resolving the issues involved is the only
question, not whether it has dealt with the four corners of the bill because the four
corners of the bill will presume to deal with everything in copyright." Id., at 115.
I therefore find in the 1976 Act no implied exemption to cover the home taping of
television programs, whether it be for a single copy, for private use, or for home use. Taping a
copyrighted television program is infringement unless it is permitted by the fair use exemption
contained in ß 107 of the 1976 Act. I now turn to that issue.
IV
Fair Use
The doctrine of fair use has been called, with some justification, "the most troublesome in
the whole law of copyright." Dellar v. Samuel Goldwyn, Inc., 104 F.2d 661, 662 (CA2 1939);
see Triangle Publications, Inc. v. Knight-Ridder Newspapers, Inc., 626 F.2d 1171, 1174 (CA537

1980); Meeropol v. Nizer, 560 F.2d 1061, 1068 (CA2 1977), cert. denied, 434 U.S. 1013
(1978). Although courts have constructed lists of factors to be considered in determining
whether a particular use is fair, n27 no fixed criteria have emerged by which that
determination can be made. This Court thus far has provided no guidance; although fair use
issues have come here twice, on each occasion the Court was equally divided and no opinion
was forthcoming. Williams & Wilkins Co. v. United States, 203 Ct. Cl. 74, 487 F.2d 1345
(1973), aff'd, 420 U.S. 376 (1975); Benny v. Loew's Inc., 239 F.2d 532 (CA9 1956), aff'd subnom. Columbia Broadcasting System, Inc. v. Loew's Inc., 356 U.S. 43 (1958).
n27 The precise phrase "fair use" apparently did not enter the case law until 1869,
see Lawrence v. Dana, 15 F. Cas. 26, 60 (No. 8,136) (CC Mass.), but the doctrine itself
found early expression in Folsom v. Marsh, 9 F. Cas. 342 (No. 4,901) (CC Mass. 1841).
Justice Story was faced there with the "intricate and embarrassing [question]" whether abiography containing copyrighted letters was "a justifiable use of the original materials,
such as the law recognizes as no infringement of the copyright of the plaintiffs." Id., at344, 348. In determining whether the use was permitted, it was necessary, said Justice
Story, to consider "the nature and objects of the selections made, the quantity and valueof the materials used, and the degree in which the use may prejudice the sale, or
diminish the profits, or supersede the objects, of the original work. . . . Much must, insuch cases, depend upon the nature of the new work, the value and extent of the copies,
and the degree in which the original authors may be injured thereby." Id., at 348-349.
Similar lists were compiled by later courts. See, e. g., Tennessee Fabricating Co. v.
Moultrie Mfg. Co., 421 F.2d 279, 283 (CA5), cert. denied, 398 U.S. 928 (1970); Mathews
Conveyer Co. v. Palmer-Bee Co., 135 F.2d 73, 85 (CA6 1943); Columbia Pictures Corp.
v. National Broadcasting Co., 137 F.Supp. 348 (SD Cal. 1955); Shapiro, Bernstein & Co.
v. P. F. Collier & Son Co., 26 USPQ 40, 43 (SDNY 1934); Hill v. Whalen & Martell, Inc.,
220 F. 359, 360 (SDNY 1914).
Nor did Congress provide definitive rules when it codified the fair use doctrine in the 1976
Act; it simply incorporated a list of factors "to be considered": the "purpose and character ofthe use," the "nature of the copyrighted work," the "amount and substantiality of the portion
used," and, perhaps the most important, the "effect of the use upon the potential market for orvalue of the copyrighted work" (emphasis supplied). ß 107. No particular weight, however,
was assigned to any of these, and the list was not intended to be exclusive. The House and
Senate Reports explain that ß 107 does no more than give "statutory recognition" to the fairuse doctrine; it was intended "to restate the present judicial doctrine of fair use, not to change,
narrow, or enlarge it in any way." 1976 House Report 66. See 1975 Senate Report 62; S. Rep.
No. 93-983, p. 116 (1974); H. R. Rep. No. 83, 90th Cong., 1st Sess., 32 (1967); H. R. Rep.
No. 2237, 89th Cong., 2d Sess., 61 (1966).
A
Despite this absence of clear standards, the fair use doctrine plays a crucial role in the lawof copyright. The purpose of copyright protection, in the words of the Constitution, is to"promote the Progress of Science and useful Arts." Copyright is based on the belief that by
granting authors the exclusive rights to reproduce their works, they are given an incentive tocreate, and that "encouragement of individual effort by personal gain is the best way toadvance public welfare through the talents of authors and inventors in 'Science and the usefulArts.'" Mazer v. Stein, 347 U.S. 201, 219 (1954). The monopoly created by copyright thus
rewards the individual author in order to benefit the public. Twentieth Century Music Corp. v.

38

Aiken, 422 U.S., at 156; Fox Film Corp. v. Doyal, 286 U.S. 123, 127-128 (1932); see H. R.
Rep. No. 2222, 60th Cong., 2d Sess., 7 (1909).
There are situations, nevertheless, in which strict enforcement of this monopoly would
inhibit the very "Progress of Science and useful Arts" that copyright is intended to promote.
An obvious example is the researcher or scholar whose own work depends on the ability torefer to and to quote the work of prior scholars. Obviously, no author could create a new work
if he were first required to repeat the research of every author who had gone before him. n28
The scholar, like the ordinary user, of course could be left to bargain with each copyrightowner for permission to quote from or refer to prior works. But there is a crucial difference
between the scholar and the ordinary user. When the ordinary user decides that the owner's
price is too high, and forgoes use of the work, only the individual is the loser. When thescholar forgoes the use of a prior work, not only does his own work suffer, but the public isdeprived of his contribution to knowledge. The scholar's work, in other words, produces
external benefits from which everyone profits. In such a case, the fair use doctrine acts as aform of subsidy -- albeit at the first author's expense -- to permit the second author to makelimited use of the first author's work for the public good. See Latman Fair Use Study 31;
Gordon, Fair Use as Market Failure: A Structural Analysis of the Betamax Case and its
Predecessors, 82 Colum. L. Rev. 1600, 1630 (1982).
n28 "The world goes ahead because each of us builds on the work of ourpredecessors. 'A dwarf standing on the shoulders of a giant can see farther than thegiant himself.'" Chafee, Reflections on the Law of Copyright: I, 45 Colum. L. Rev. 503,
511 (1945).
A similar subsidy may be appropriate in a range of areas other than pure scholarship. The
situations in which fair use is most commonly recognized are listed in ß 107 itself; fair use
may be found when a work is used "for purposes such as criticism, comment, news reporting,teaching, . . . scholarship, or research." The House and Senate Reports expand on this list
somewhat, n29 and other examples may be found in the case law. n30 Each of these uses,
however, reflects a common theme: each is a productive use, resulting in some added benefit
to the public beyond that produced by the first author's work. n31 The fair use doctrine, inother words, permits works to be used for "socially laudable purposes." See Copyright Office,Briefing Papers on Current Issues, reprinted in 1975 House Hearings 2051, 2055. I am awareof no case in which the reproduction of a copyrighted work for the sole benefit of the user has
been held to be fair use. n32
n29 Quoting from the Register's 1961 Report, the Senate and House Reports give
examples of possible fair uses:"'quotation of excerpts in a review or criticism for purposes of illustration or comment;
quotation of short passages in a scholarly or technical work, for illustration or clarificationof the author's observations; use in a parody of some of the content of the work
parodied; summary of an address or article, with brief quotations, in a news report;
reproduction by a library of a portion of a work to replace part of a damaged copy;
reproduction by a teacher or student of a small part of a work to illustrate a lesson;
reproduction of a work in legislative or judicial proceedings or reports; incidental andfortuitous reproduction, in a newsreel or broadcast, of a work located in the scene of anevent being reported.'" 1975 Senate Report 61-62; 1976 House Report 65.

39

n30 See, e. g., Triangle Publications, Inc. v. Knight-Ridder Newspapers, Inc., 626
F.2d 1171 (CA5 1980) (comparative advertising).
n31 Professor Seltzer has characterized these lists of uses as "[reflecting] what infact the subject matter of fair use has in the history of its adjudication consisted in: it
has always had to do with the use by a second author of a first author's work." L.
Seltzer, Exemptions and Fair Use in Copyright 24 (1978) (emphasis removed). He
distinguishes "the mere reproduction of a work in order to use it for its intrinsic purpose - to make what might be called the 'ordinary' use of it." When copies are made for"ordinary" use of the work, "ordinary infringement has customarily been triggered, notnotions of fair use" (emphasis in original). Ibid. See also 3 M. Nimmer, Copyright ß
13.05[A][1] (1983) ("Use of a work in each of the foregoing contexts either necessarily
or usually involves its use in a derivative work").
n32 Williams & Wilkins Co. v. United States, 203 Ct. Cl. 74, 487 F.2d 1345 (1973),
aff'd by an equally divided Court, 420 U.S. 376 (1975), involved the photocopying of
scientific journal articles; the Court of Claims stressed that the libraries performing thecopying were "devoted solely to the advancement and dissemination of medical
knowledge," 203 Ct. Cl., at 91, 487 F.2d, at 1354, and that "medical science would beseriously hurt if such library photocopying were stopped." Id., at 95, 487 F.2d, at 1356.
The issue of library copying is now covered by ß 108 of the 1976 Act. That section,
which Congress regarded as "[authorizing] certain photocopying practices which may not
qualify as a fair use," 1975 Senate Report 67; 1976 House Report 74, permits themaking of copies only for "private study, scholarship, or research." ß ß 108(d)(1) and(e)(1).
I do not suggest, of course, that every productive use is a fair use. A finding of fair use stillmust depend on the facts of the individual case, and on whether, under the circumstances, it isreasonable to expect the user to bargain with the copyright owner for use of the work. The
fair use doctrine must strike a balance between the dual risks created by the copyright system:on the one hand, that depriving authors of their monopoly will reduce their incentive to create,
and, on the other, that granting authors a complete monopoly will reduce the creative ability ofothers. n33 The inquiry is necessarily a flexible one, and the endless variety of situations that
may arise precludes the formulation of exact rules. But when a user reproduces an entire workand uses it for its original purpose, with no added benefit to the public, the doctrine of fair use
usually does not apply. There is then no need whatsoever to provide the ordinary user with afair use subsidy at the author's expense.
n33 In the words of Lord Mansfield: "[We] must take care to guard against two
extremes equally prejudicial; the one, that men of ability, who have employed their time
for the service of the community, may not be deprived of their just merits, and thereward of their ingenuity and labour; the other, that the world may not be deprived of
improvements, nor the progress of the arts be retarded." Sayre v. Moore, as set forth inCary v. Longman, 1 East 358, 361, n. (b), 102 Eng. Rep. 138, 140, n. (b) (K. B. 1785).
See Register's Supplementary Report 13.
The making of a videotape recording for home viewing is an ordinary rather than aproductive use of the Studios' copyrighted works. The District Court found that "Betamax
owners use the copy for the same purpose as the original. They add nothing of their own."

40480 F.Supp., at 453. Although applying the fair use doctrine to home VTR recording, as Sonyargues, may increase public access to material broadcast free over the public airwaves, I thinkSony's argument misconceives the nature of copyright. Copyright gives the author a right tolimit or even to cut off access to his work. Fox Film Corp. v. Doyal, 286 U.S., at 127. A VTR
recording creates no public benefit sufficient to justify limiting this right. Nor is this rightextinguished by the copyright owner's choice to make the work available over the airwaves.
Section 106 of the 1976 Act grants the copyright owner the exclusive right to control theperformance and the reproduction of his work, and the fact that he has licensed a single
television performance is really irrelevant to the existence of his right to control its
reproduction. Although a television broadcast may be free to the viewer, this fact is equallyirrelevant; a book borrowed from the public library may not be copied any more freely than abook that is purchased.
It may be tempting, as, in my view, the Court today is tempted, to stretch the doctrine offair use so as to permit unfettered use of this new technology in order to increase access totelevision programming. But such an extension risks eroding the very basis of copyright law,by depriving authors of control over their works and consequently of their incentive to create.
n34 Even in the context of highly productive educational uses, Congress has avoided this
temptation; in passing the 1976 Act, Congress made it clear that off-the-air videotaping was tobe permitted only in very limited situations. See 1976 House Report 71; 1975 Senate Report
64. And, the Senate Report adds, "[the] committee does not intend to suggest . . . that offthe-air recording for convenience would under any circumstances, be considered 'fair use.'"Id., at 66. I cannot disregard these admonitions.
n34 This point was brought home repeatedly by the Register of Copyrights.
Mentioning the "multitude of technological developments" since passage of the 1909 Act,
including "remarkable developments in the use of video tape," Register's Supplementary
Report xiv-xv, the Register cautioned:"I realize, more clearly now than I did in 1961, that the revolution in communications
has brought with it a serious challenge to the author's copyright. This challenge comes
not only from the ever-growing commercial interests who wish to use the author's works
for private gain. An equally serious attack has come from people with a sincere interestin the public welfare who fully recognize . . . 'that the real heart of civilization . . . owes
its existence to the author'; ironically, in seeking to make the author's works widely
available by freeing them from copyright restrictions, they fail to realize that they are
whittling away the very thing that nurtures authorship in the first place. An
accommodation among conflicting demands must be worked out, true enough, but notby denying the fundamental constitutional directive: to encourage cultural progress by
securing the author's exclusive rights to him for a limited time." Id., at xv; see 1975
House Hearings 117 (testimony of Barbara Ringer, Register of Copyrights).
B
I recognize, nevertheless, that there are situations where permitting even an unproductive
use would have no effect on the author's incentive to create, that is, where the use would notaffect the value of, or the market for, the author's work. Photocopying an old newspaper
clipping to send to a friend may be an example; pinning a quotation on one's bulletin board
may be another. In each of these cases, the effect on the author is truly de minimis. Thus,
even though these uses provide no benefit to the public at large, no purpose is served bypreserving the author's monopoly, and the use may be regarded as fair.

41

Courts should move with caution, however, in depriving authors of protection from
unproductive "ordinary" uses. As has been noted above, even in the case of a productive use,
ß 107(4) requires consideration of "the effect of the use upon the potential market for orvalue of the copyrighted work" (emphasis added). "[A] particular use which may seem to havelittle or no economic impact on the author's rights today can assume tremendous importancein times to come." Register's Supplementary Report 14. Although such a use may seem
harmless when viewed in isolation, "[isolated] instances of minor infringements, when
multiplied many times, become in the aggregate a major inroad on copyright that must be
prevented." 1975 Senate Report 65.
I therefore conclude that, at least when the proposed use is an unproductive one, acopyright owner need prove only a potential for harm to the market for or the value of the
copyrighted work. See 3 M. Nimmer, Copyright ß 13.05[E][4][c], p. 13-84 (1983). Proof of
actual harm, or even probable harm, may be impossible in an area where the effect of a newtechnology is speculative, and requiring such proof would present the "real danger . . . ofconfining the scope of an author's rights on the basis of the present technology so that, as theyears go by, his copyright loses much of its value because of unforeseen technical advances."
Register's Supplementary Report 14. Infringement thus would be found if the copyright ownerdemonstrates a reasonable possibility that harm will result from the proposed use. When theuse is one that creates no benefit to the public at large, copyright protection should not bedenied on the basis that a new technology that may result in harm has not yet done so.
The Studios have identified a number of ways in which VTR recording could damage their
copyrights. VTR recording could reduce their ability to market their works in movie theaters
and through the rental or sale of prerecorded videotapes or videodiscs; it also could reduce
their rerun audience, and consequently the license fees available to them for repeatedshowings. Moreover, advertisers may be willing to pay for only "live" viewing audiences, if
they believe VTR viewers will delete commercials or if rating services are unable to measure
VTR use; if this is the case, VTR recording could reduce the license fees the Studios are able tocharge even for first-run showings. Library-building may raise the potential for each of thetypes of harm identified by the Studios, and time-shifting may raise the potential for
substantial harm as well. n35
n35 A VTR owner who has taped a favorite movie for repeated viewing will be lesslikely to rent or buy a tape containing the same movie, watch a televised rerun, or pay to
see the movie at a theater. Although time-shifting may not replace theater or rerun
viewing or the purchase of prerecorded tapes or discs, it may well replace rental usage;a VTR user who has recorded a first-run movie for later viewing will have no need to renta copy when he wants to see it. Both library-builders and time-shifters may avoid
commercials; the library-builder may use the pause control to record without them, andall users may fast-forward through commercials on playback.
The Studios introduced expert testimony that both time-shifting and librarying would
tend to decrease their revenue from copyrighted works. See 480 F.Supp., at 440. The
District Court's findings also show substantial library-building and avoidance ofcommercials. Both sides submitted surveys showing that the average Betamax userowns between 25 and 32 tapes. The Studios' survey showed that at least 40% of users
had more than 10 tapes in a "library"; Sony's survey showed that more than 40% ofusers planned to view their tapes more than once; and both sides' surveys showed thatcommercials were avoided at least 25% of the time. Id., at 438-439.

42

Although the District Court found no likelihood of harm from VTR use, 480 F.Supp., at 468,
I conclude that it applied an incorrect substantive standard and misallocated the burden of
proof. The District Court reasoned that the Studios had failed to prove that library-building
would occur "to any significant extent," id., at 467; that the Studios' prerecorded videodiscs
could compete with VTR recordings and were "arguably . . . more desirable," ibid.; that it was"not clear that movie audiences will decrease," id., at 468; and that the practice of deleting
commercials "may be too tedious" for many viewers, ibid. To the extent any decrease inadvertising revenues would occur, the court concluded that the Studios had "marketingalternatives at hand to recoup some of that predicted loss." Id., at 452. Because the Studios'
prediction of harm was "based on so many assumptions and on a system of marketing which is
rapidly changing," the court was "hesitant to identify 'probable effects' of home-use copying."
Ibid.
The District Court's reluctance to engage in prediction in this area is understandable, but,in my view, the court was mistaken in concluding that the Studios should bear the risk createdby this uncertainty. The Studios have demonstrated a potential for harm, which has not been,
and could not be, refuted at this early stage of technological development.
The District Court's analysis of harm, moreover, failed to consider the effect of VTR
recording on "the potential market for or the value of the copyrighted work," as required by ß
107(4). n36 The requirement that a putatively infringing use of a copyrighted work, to be"fair," must not impair a "potential" market for the work has two implications. First, an
infringer cannot prevail merely by demonstrating that the copyright holder suffered no net
harm from the infringer's action. Indeed, even a showing that the infringement has resulted ina net benefit to the copyright holder will not suffice. Rather, the infringer must demonstratethat he had not impaired the copyright holder's ability to demand compensation from (or todeny access to) any group who would otherwise be willing to pay to see or hear the
copyrighted work. Second, the fact that a given market for a copyrighted work would not be
available to the copyright holder were it not for the infringer's activities does not permit the
infringer to exploit that market without compensating the copyright holder. See Iowa State
University Research Foundation, Inc. v. American Broadcasting Cos., 621 F.2d 57 (CA2 1980).
n36 Concern over the impact of a use upon "potential" markets is to be found incases decided both before and after ß 107 lent Congress' imprimatur to the judiciallycreated doctrine of fair use. See, e. g., Iowa State University Research Foundation, Inc.
v. American Broadcasting Cos., 621 F.2d 57, 60 (CA2 1980) ("the effect of the use on
the copyright holder's potential market for the work"); Meeropol v. Nizer, 560 F.2d 1061,
1070 (CA2 1977) ("A key issue in fair use cases is whether the defendant's work tends todiminish or prejudice the potential sale of plaintiff's work"), cert. denied, 434 U.S. 1013
(1978); Williams & Wilkins Co. v. United States, 203 Ct. Cl., at 88, 487 F.2d, at 1352("the effect of the use on a copyright owner's potential market for and value of hiswork"); Encyclopaedia Britannica Educational Corp. v. Crooks, 542 F.Supp. 1156, 1173
(WDNY 1982) ("[The] concern here must be focused on a copyrighted work's potential
market. It is perfectly possible that plaintiffs' profits would have been greater, but for
the kind of videotaping in question") (emphasis in original).
In this case, the Studios and their amici demonstrate that the advent of the VTR technology
created a potential market for their copyrighted programs. That market consists of those
persons who find it impossible or inconvenient to watch the programs at the time they arebroadcast, and who wish to watch them at other times. These persons are willing to pay forthe privilege of watching copyrighted work at their convenience, as is evidenced by the factthat they are willing to pay for VTR's and tapes; undoubtedly, most also would be willing to43

pay some kind of royalty to copyright holders. The Studios correctly argue that they have been
deprived of the ability to exploit this sizable market.
It is thus apparent from the record and from the findings of the District Court that timeshifting does have a substantial adverse effect upon the "potential market for" the Studios'
copyrighted works. Accordingly, even under the formulation of the fair use doctrine advanced
by Sony, time-shifting cannot be deemed a fair use.
V
Contributory Infringement
From the Studios' perspective, the consequences of home VTR recording are the same as if
a business had taped the Studios' works off the air, duplicated the tapes, and sold or rented
them to members of the public for home viewing. The distinction is that home VTR users do
not record for commercial advantage; the commercial benefit accrues to the manufacturer anddistributors of the Betamax. I thus must proceed to discuss whether the manufacturer anddistributors can be held contributorily liable if the product they sell is used to infringe.
It is well established that liability for copyright infringement can be imposed on persons
other than those who actually carry out the infringing activity. Kalem Co. v. Harper Brothers,
222 U.S. 55, 62-63 (1911); 3 M. Nimmer, Copyright ß 12.04[A] (1983); see TwentiethCentury Music Corp. v. Aiken, 422 U.S., at 160, n. 11; Buck v. Jewell-LaSalle Realty Co., 283
U.S. 191, 198 (1931). Although the liability provision of the 1976 Act provides simply that"[anyone] who violates any of the exclusive rights of the copyright owner . . . is an infringer ofthe copyright," 17 U. S. C. ß 501(a) (1982 ed.), the House and Senate Reports demonstratethat Congress intended to retain judicial doctrines of contributory infringement. 1975 Senate
Report 57; 1976 House Report 61. n37
n37 This intent is manifested further by provisions of the 1976 Act that exempt fromliability persons who, while not participating directly in any infringing activity, could
otherwise be charged with contributory infringement. See ß 108(f)(1) (library not liable"for the unsupervised use of reproducing equipment located on its premises," provided
that certain warnings are posted); ß 110(6) ("governmental body" or "nonprofit
agricultural or horticultural organization" not liable for infringing performance byconcessionaire "in the course of an annual agricultural or horticultural fair or exhibition").
The doctrine of contributory copyright infringement, however, is not well defined. One of
the few attempts at definition appears in Gershwin Publishing Corp. v. Columbia Artists
Management, Inc., 443 F.2d 1159 (CA2 1971). In that case the Second Circuit stated that "onewho, with knowledge of the infringing activity, induces, causes or materially contributes to theinfringing conduct of another, may be held liable as a 'contributory' infringer." Id., at 1162
(footnote omitted). While I have no quarrel with this general statement, it does not easily
resolve the present case; the District Court and the Court of Appeals, both purporting to apply
it, reached diametrically opposite results.
A
In absolving Sony from liability, the District Court reasoned that Sony had no direct
involvement with individual Betamax users, did not participate in any off-the-air copying, anddid not know that such copying was an infringement of the Studios' copyright. 480 F.Supp., at460. I agree with the Gershwin court that contributory liability may be imposed even when the
defendant has no formal control over the infringer. The defendant in Gershwin was a concert
promoter operating through local concert associations that it sponsored; it had no formal

44

control over the infringing performers themselves. 443 F.2d, at 1162-1163. See also
Twentieth Century Music Corp. v. Aiken, 422 U.S., at 160, n. 11. Moreover, a finding ofcontributory infringement has never depended on actual knowledge of particular instances ofinfringement; it is sufficient that the defendant have reason to know that infringement istaking place. 443 F.2d, at 1162; see Screen Gems-Columbia Music, Inc. v. Mark-Fi Records,
Inc., 256 F.Supp. 399 (SDNY 1966). n38 In the so-called "dance hall" cases, in whichquestions of contributory infringement arise with some frequency, proprietors of entertainment
establishments routinely are held liable for unauthorized performances on their premises, evenwhen they have no knowledge that copyrighted works are being performed. In effect, theproprietors in those cases are charged with constructive knowledge of the performances. n39
n38 In Screen Gems, on which the Gershwin court relied, the court held that liability
could be imposed on a shipper of unauthorized "bootleg" records and a radio station thatbroadcast advertisements of the records, provided they knew or should have known thatthe records were infringing. The court concluded that the records' low price and themanner in which the records were marketed could support a finding of "constructive
knowledge" even if actual knowledge were not shown.

n39 See, e. g., Famous Music Corp. v. Bay State Harness Horse Racing & Breeding
Assn., Inc., 554 F.2d 1213 (CA1 1977); Dreamland Ball Room, Inc. v. Shapiro, Bernstein& Co., 36 F.2d 354 (CA7 1929); M. Witmark & Sons v. Tremont Social & Athletic Club,
188 F.Supp. 787, 790 (Mass. 1960); see also Twentieth Century Music Corp. v. Aiken,
422 U.S. 151, 157 (1975); Buck v. Jewell-LaSalle Realty Co., 283 U.S. 191, 198-199(1931); 3 M. Nimmer, Copyright ß 12.04[A], p. 12-35 (1983).
Courts have premised liability in these cases on the notion that the defendant had theability to supervise or control the infringing activities, see, e. g., Shapiro, Bernstein & Co.
v. H. L. Green Co., 316 F.2d 304, 307 (CA2 1963); KECA Music, Inc. v. Dingus McGee's
Co., 432 F.Supp. 72, 74 (WD Mo. 1977). This notion, however, is to some extent
fictional; the defendant cannot escape liability by instructing the performers not to play
copyrighted music, or even by inserting a provision to that effect into the performers'
contract. Famous Music Corp. v. Bay State Harness Horse Racing & Breeding Assn., Inc.,554 F.2d, at 1214-1215; KECA Music, Inc. v. Dingus McGee's Co., 432 F.Supp., at 75;
Shapiro, Bernstein & Co. v. Veltin, 47 F.Supp. 648, 649 (WD La. 1942). Congress
expressly rejected a proposal to exempt proprietors from this type of liability under the
1976 Act. See 1975 Senate Report 141-142; 1976 House Report 159-160; 1975 House
Hearings 1812-1813 (testimony of Barbara Ringer, Register of Copyrights); id., at 1813
(colloquy between Rep. Pattison and Barbara Ringer).
The Court's attempt to distinguish these cases on the ground of "control," ante, at
437, is obviously unpersuasive. The direct infringer ordinarily is not employed by the
person held liable; instead, he is an independent contractor. Neither is he always anagent of the person held liable; Screen Gems makes this apparent.
Nor is it necessary that the defendant be aware that the infringing activity violates the
copyright laws. Section 504(c)(2) of the 1976 Act provides for a reduction in statutory
damages when an infringer proves he "was not aware and had no reason to believe that his or
her acts constituted an infringement of copyright," but the statute establishes no general
exemption for those who believe their infringing activities are legal. Moreover, such an
exemption would be meaningless in a case such as this, in which prospective relief is sought;45

once a court has established that the copying at issue is infringement, the defendants arenecessarily aware of that fact for the future. It is undisputed in this case that Sony had reason
to know the Betamax would be used by some owners to tape copyrighted works off the air.
See 480 F.Supp., at 459-460.
The District Court also concluded that Sony had not caused, induced, or contributed
materially to any infringing activities of Betamax owners. Id., at 460. In a case of this kind,
however, causation can be shown indirectly; it does not depend on evidence that particular
Betamax owners relied on particular advertisements. In an analogous case decided just two
Terms ago, this Court approved a lower court's conclusion that liability for contributory
trademark infringement could be imposed on a manufacturer who "suggested, even by
implication" that a retailer use the manufacturer's goods to infringe the trademark of another.
Inwood Laboratories, Inc. v. Ives Laboratories, Inc., 456 U.S. 844, 851 (1982); see id., at 860(opinion concurring in result). I think this standard is equally appropriate in the copyrightcontext.
The District Court found that Sony has advertised the Betamax as suitable for off-the-air
recording of "favorite shows," "novels for television," and "classic movies," 480 F.Supp., at436, with no visible warning that such recording could constitute copyright infringement. It isonly with the aid of the Betamax or some other VTR, that it is possible today for home
television viewers to infringe copyright by recording off-the-air. Off-the-air recording is not
only a foreseeable use for the Betamax, but indeed is its intended use. Under thecircumstances, I agree with the Court of Appeals that if off-the-air recording is an infringementof copyright, Sony has induced and materially contributed to the infringing conduct of Betamax
owners. n40
n40 My conclusion respecting contributory infringement does not include the retailer
defendants. The District Court found that one of the retailer defendants had assisted in
the advertising campaign for the Betamax, but made no other findings respecting theirknowledge of the Betamax's intended uses. I do not agree with the Court of Appeals, atleast on this record, that the retailers "are sufficiently engaged in the enterprise to beheld accountable," 659 F.2d 963, 976 (1981). In contrast, the advertising agency
employed to promote the Betamax was far more actively engaged in the advertising
campaign, and petitioners have not argued that the agency's liability differs in any way
from that of Sony Corporation and Sony Corporation of America.
B
Sony argues that the manufacturer or seller of a product used to infringe is absolved fromliability whenever the product can be put to any substantial noninfringing use. Brief for
Petitioners 41-42. The District Court so held, borrowing the "staple article of commerce"
doctrine governing liability for contributory infringement of patents. See 35 U. S. C. ß 271.
n41 This Court today is much less positive. See ante, at 440-442. I do not agree that thistechnical judge-made doctrine of patent law, based in part on considerations irrelevant to thefield of copyright, see generally Dawson Chemical Co. v. Rohm & Haas Co., 448 U.S. 176, 187199 (1980), should be imported wholesale into copyright law. Despite their common
constitutional source, see U.S. Const., Art. I, ß 8, cl. 8, patent and copyright protections havenot developed in a parallel fashion, and this Court in copyright cases in the past has borrowed
patent concepts only sparingly. See Bobbs-Merrill Co. v. Straus, 210 U.S. 339, 345-346(1908).

46

n41 The "staple article of commerce" doctrine protects those who manufacture
products incorporated into or used with patented inventions -- for example, the paper
and ink used with patented printing machines, Henry v. A. B. Dick Co., 224 U.S. 1(1912), or the dry ice used with patented refrigeration systems, Carbice Corp. v.
American Patents Corp., 283 U.S. 27 (1931). Because a patent holder has the right tocontrol the use of the patented item as well as its manufacture, see Motion Picture
Patents Co. v. Universal Film Mfg. Co., 243 U.S. 502, 509-510 (1917); 35 U. S. C. ß
271(a), such protection for the manufacturer of the incorporated product is necessary to
prevent patent holders from extending their monopolies by suppressing competition in
unpatented components and supplies suitable for use with the patented item. See
Dawson Chemical Co. v. Rohm & Haas Co., 448 U.S. 176, 197-198 (1980). The doctrineof contributory patent infringement has been the subject of attention by the courts andby Congress, see id., at 202-212, and has been codified since 1952, 66 Stat. 792, but
was never mentioned during the copyright law revision process as having any relevanceto contributory copyright infringement.
I recognize, however, that many of the concerns underlying the "staple article ofcommerce" doctrine are present in copyright law as well. As the District Court noted, if liability
for contributory infringement were imposed on the manufacturer or seller of every productused to infringe -- a typewriter, a camera, a photocopying machine -- the "wheels ofcommerce" would be blocked. 480 F.Supp., at 461; see also Kalem Co. v. Harper Brothers,
222 U.S., at 62.
I therefore conclude that if a significant portion of the product's use is noninfringing, themanufacturers and sellers cannot be held contributorily liable for the product's infringing uses.
See ante, at 440-441. If virtually all of the product's use, however, is to infringe, contributory
liability may be imposed; if no one would buy the product for noninfringing purposes alone, it
is clear that the manufacturer is purposely profiting from the infringement, and that liability isappropriately imposed. In such a case, the copyright owner's monopoly would not be
extended beyond its proper bounds; the manufacturer of such a product contributes to theinfringing activities of others and profits directly thereby, while providing no benefit to the
public sufficient to justify the infringement.
The Court of Appeals concluded that Sony should be held liable for contributory
infringement, reasoning that "[videotape] recorders are manufactured, advertised, and sold forthe primary purpose of reproducing television programming," and "[virtually] all television
programming is copyrighted material." 659 F.2d, at 975. While I agree with the first of these
propositions, n42 the second, for me, is problematic. The key question is not the amount of
television programming that is copyrighted, but rather the amount of VTR usage that is
infringing. n43 Moreover, the parties and their amici have argued vigorously about both theamount of television programming that is covered by copyright and the amount for which
permission to copy has been given. The proportion of VTR recording that is infringing isultimately a question of fact, n44 and the District Court specifically declined to make findingson the "percentage of legal versus illegal home-use recording." 480 F.Supp., at 468. In light ofmy view of the law, resolution of this factual question is essential. I therefore would remand
the case for further consideration of this by the District Court.
n42 Although VTR's also may be used to watch prerecorded video cassettes and to
make home motion pictures, these uses do not require a tuner such as the Betamax
contains. See n. 1, supra. The Studios do not object to Sony's sale of VTR's without
tuners. Brief for Respondents 5, n. 9. In considering the noninfringing uses of the47

Betamax, therefore, those uses that would remain possible without the Betamax's builtin tuner should not be taken into account.
n43 Noninfringing uses would include, for example, recording works that are notprotected by copyright, recording works that have entered the public domain, recordingwith permission of the copyright owner, and, of course, any recording that qualifies asfair use. See, e. g., Bruzzone v. Miller Brewing Co., 202 USPQ 809 (ND Cal. 1979) (useof home VTR for market research studies).
n44 Sony asserts that much or most television broadcasting is available for homerecording because (1) no copyright owner other than the Studios has brought aninfringement action, and (2) much televised material is ineligible for copyright protection
because videotapes of the broadcasts are not kept. The first of these assertions isirrelevant; Sony's liability does not turn on the fact that only two copyright owners thus
far have brought suit. The amount of infringing use must be determined throughconsideration of the television market as a whole. Sony's second assertion is based on a
faulty premise; the Copyright Office permits audiovisual works transmitted by television
to be registered by deposit of sample frames plus a description of the work. See 37 CFRß ß 202.20(c)(2)(ii) and 202.21(g) (1983). Moreover, although an infringement action
cannot be brought unless the work is registered, 17 U. S. C. ß 411(a) (1982 ed.),registration is not a condition of copyright protection. ß 408(a). Copying an
unregistered work still may be infringement. Cf. ß 506(a) (liability for criminal copyright
infringement; not conditioned on prior registration).
VI
The Court has adopted an approach very different from the one I have outlined. It is myview that the Court's approach alters dramatically the doctrines of fair use and contributory
infringement as they have been developed by Congress and the courts. Should Congresschoose to respond to the Court's decision, the old doctrines can be resurrected. As it stands,
however, the decision today erodes much of the coherence that these doctrines have struggled
to achieve.
The Court's disposition of the case turns on its conclusion that time-shifting is a fair use.
Because both parties agree that time-shifting is the primary use of VTR's, that conclusion, if
correct, would settle the issue of Sony's liability under almost any definition of contributory
infringement. The Court concludes that time-shifting is fair use for two reasons. Each isseriously flawed.
The Court's first reason for concluding that time-shifting is fair use is its claim that many
copyright holders have no objection to time-shifting, and that "respondents have no right toprevent other copyright holders from authorizing it for their programs." Ante, at 442. The
Court explains that a finding of contributory infringement would "inevitably frustrate theinterests of broadcasters in reaching the portion of their audience that is available only throughtime-shifting." Ante, at 446. Such reasoning, however, simply confuses the question of liability
with the difficulty of fashioning an appropriate remedy. It may be that an injunction
prohibiting the sale of VTR's would harm the interests of copyright holders who have no
objection to others making copies of their programs. But such concerns should and would betaken into account in fashioning an appropriate remedy once liability has been found.
Remedies may well be available that would not interfere with authorized time-shifting at all.
The Court of Appeals mentioned the possibility of a royalty payment that would allow VTR sales
and time-shifting to continue unabated, and the parties may be able to devise other narrowly
tailored remedies. Sony may be able, for example, to build a VTR that enables broadcasters toscramble the signal of individual programs and "jam" the unauthorized recording of them.

48

Even were an appropriate remedy not available at this time, the Court should not misconstrue
copyright holders' rights in a manner that prevents enforcement of them when, throughdevelopment of better techniques, an appropriate remedy becomes available. n45
n45 Even if concern with remedy were appropriate at the liability stage, the Court's
use of the District Court's findings is somewhat cavalier. The Court relies heavily on
testimony by representatives of professional sports leagues to the effect that they haveno objection to VTR recording. The Court never states, however, whether the sports
leagues are copyright holders, and if so, whether they have exclusive copyrights tosports broadcasts. It is therefore unclear whether the sports leagues have authority toconsent to copying the broadcasts of their events.
Assuming that the various sports leagues do have exclusive copyrights in some of
their broadcasts, the amount of authorized time-shifting still would not be overwhelming.
Sony's own survey indicated that only 7.3% of all Betamax use is to record sports eventsof all kinds. Tr. 2353, Defendants' Exh. OT, Table 20. Because Sony's witnesses did not
represent all forms of sports events, moreover, this figure provides only a tenuous basis
for this Court to engage in factfinding of its own.
The only witness at trial who was clearly an exclusive copyright owner and who
expressed no objection to unauthorized time-shifting was the owner of the copyright in
Mister Rogers' Neighborhood. But the Court cites no evidence in the record to the effectthat anyone makes VTR copies of that program. The simple fact is that the District Court
made no findings on the amount of authorized time-shifting that takes place. The Court
seems to recognize this gap in its reasoning, and phrases its argument as a hypothetical.
The Court states: "If there are millions of owners of VTR's who make copies of televised
sports events, religious broadcasts, and educational programs such as Mister Rogers'
Neighborhood, and if the proprietors of those programs welcome the practice," the saleof VTR's "should not be stifled" in order to protect respondents' copyrights. Ante, at 446(emphasis supplied). Given that the Court seems to recognize that its argument
depends on findings that have not been made, it seems that a remand is inescapable.
The Court's second stated reason for finding that Sony is not liable for contributory
infringement is its conclusion that even unauthorized time-shifting is fair use. Ante, at 447 etseq. This conclusion is even more troubling. The Court begins by suggesting that the fair use
doctrine operates as a general "equitable rule of reason." That interpretation mischaracterizes
the doctrine, and simply ignores the language of the statute. Section 107 establishes the fairuse doctrine "for purposes such as criticism, comment, news reporting, teaching, . . .
scholarship, or research." These are all productive uses. It is true that the legislative history
states repeatedly that the doctrine must be applied flexibly on a case-by-case basis, but thosereferences were only in the context of productive uses. Such a limitation on fair use comports
with its purpose, which is to facilitate the creation of new works. There is no indication thatthe fair use doctrine has any application for purely personal consumption on the scale involvedin this case, n46 and the Court's application of it here deprives fair use of the major cohesive
force that has guided evolution of the doctrine in the past.
n46 As has been explained, some uses of time-shifting, such as copying an old
newspaper clipping for a friend, are fair use because of their de minimis effect on the
copyright holder. The scale of copying involved in this case, of course, is of an entirely
different magnitude, precluding application of such an exception.

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Having bypassed the initial hurdle for establishing that a use is fair, the Court thenpurports to apply to time-shifting the four factors explicitly stated in the statute. The first is"the purpose and character of the use, including whether such use is of a commercial nature or
is for nonprofit educational purposes." ß 107(1). The Court confidently describes time-shifting
as a noncommercial, nonprofit activity. It is clear, however, that personal use of programs
that have been copied without permission is not what ß 107(1) protects. The intent of thesection is to encourage users to engage in activities the primary benefit of which accrues toothers. Time-shifting involves no such humanitarian impulse. It is likewise something of amischaracterization of time-shifting to describe it as noncommercial in the sense that that term
is used in the statute. As one commentator has observed, time-shifting is noncommercial in
the same sense that stealing jewelry and wearing it -- instead of reselling it -- isnoncommercial. n47 Purely consumptive uses are certainly not what the fair use doctrine wasdesigned to protect, and the awkwardness of applying the statutory language to time-shifting
only makes clearer that fair use was designed to protect only uses that are productive.
n47 Home Recording of Copyrighted Works: Hearing before the Subcommittee on
Courts, Civil Liberties, and the Administration of Justice of the House Committee on the
Judiciary, 97th Cong., 2d Sess., pt. 2, p. 1250 (1982) (memorandum of Prof. Laurence
H. Tribe).
The next two statutory factors are all but ignored by the Court -- though certainly notbecause they have no applicability. The second factor -- "the nature of the copyrighted work"-- strongly supports the view that time-shifting is an infringing use. The rationale guiding
application of this factor is that certain types of works, typically those involving "more ofdiligence than of originality or inventiveness," New York Times Co. v. Roxbury Data Interface,Inc., 434 F.Supp. 217, 221 (NJ 1977), require less copyright protection than other original
works. Thus, for example, informational works, such as news reports, that readily lendthemselves to productive use by others, are less protected than creative works ofentertainment. Sony's own surveys indicate that entertainment shows account for more than
80% of the programs recorded by Betamax owners. n48
n48 See A Survey of Betamax Owners, Tr. 2353, Defendants' Exh. OT, Table 20,
cited in Brief for Respondents 52.
The third statutory factor -- "the amount and substantiality of the portion used" -- is evenmore devastating to the Court's interpretation. It is undisputed that virtually all VTR owners
record entire works, see 480 F.Supp., at 454, thereby creating an exact substitute for the
copyrighted original. Fair use is intended to allow individuals engaged in productive uses tocopy small portions of original works that will facilitate their own productive endeavors. Timeshifting bears no resemblance to such activity, and the complete duplication that it involves
might alone be sufficient to preclude a finding of fair use. It is little wonder that the Court haschosen to ignore this statutory factor. n49
n49 The Court's one oblique acknowledgment of this third factor, ante, at 447, and n.
30, seems to suggest that the fact that time-shifting involves copying complete works is
not very significant because the viewers already have been asked to watch the initialbroadcast free. This suggestion misses the point. As has been noted, a book borrowed
from a public library may not be copied any more freely than one that has been

50

purchased. An invitation to view a showing is completely different from an invitation tocopy a copyrighted work.
The fourth factor requires an evaluation of "the effect of the use upon the potential market
for or value of the copyrighted work." This is the factor upon which the Court focuses, but once
again, the Court has misread the statute. As mentioned above, the statute requires a court toconsider the effect of the use on the potential market for the copyrighted work. The Court has
struggled mightily to show that VTR use has not reduced the value of the Studios' copyrighted
works in their present markets. Even if true, that showing only begins the proper inquiry. The
development of the VTR has created a new market for the works produced by the Studios.
That market consists of those persons who desire to view television programs at times otherthan when they are broadcast, and who therefore purchase VTR recorders to enable them totime-shift. n50 Because time-shifting of the Studios' copyrighted works involves the copying ofthem, however, the Studios are entitled to share in the benefits of that new market. Those
benefits currently go to Sony through Betamax sales. Respondents therefore can show harmfrom VTR use simply by showing that the value of their copyrights would increase if they werecompensated for the copies that are used in the new market. The existence of this effect isself-evident.
n50 The Court implicitly has recognized that this market is very significant. The
central concern underlying the Court's entire opinion is that there is a large audience
who would like very much to be able to view programs at times other than when they
are broadcast. Ante, at 446. The Court simply misses the implication of its own
concerns.
Because of the Court's conclusion concerning the legality of time-shifting, it neveraddresses the amount of noninfringing use that a manufacturer must show to absolve itself
from liability as a contributory infringer. Thus, it is difficult to discuss how the Court's test forcontributory infringement would operate in practice under a proper analysis of time-shifting.
One aspect of the test as it is formulated by the Court, however, particularly deservescomment. The Court explains that a manufacturer of a product is not liable for contributory
infringement as long as the product is "capable of substantial noninfringing uses." Ante, at 442(emphasis supplied). Such a definition essentially eviscerates the concept of contributory
infringement. Only the most unimaginative manufacturer would be unable to demonstrate thata image-duplicating product is "capable" of substantial noninfringing uses. Surely Congressdesired to prevent the sale of products that are used almost exclusively to infringe copyrights;
the fact that noninfringing uses exist presumably would have little bearing on that desire.
More importantly, the rationale for the Court's narrow standard of contributory
infringement reveals that, once again, the Court has confused the issue of liability with that ofremedy. The Court finds that a narrow definition of contributory infringement is necessary inorder to protect "the rights of others freely to engage in substantially unrelated areas ofcommerce." Ante, at 442. But application of the contributory infringement doctrine implicatessuch rights only if the remedy attendant upon a finding of liability were an injunction against
the manufacture of the product in question. The issue of an appropriate remedy is not before
the Court at this time, but it seems likely that a broad injunction is not the remedy that would
be ordered. It is unfortunate that the Court has allowed its concern over a remedy to infect its
analysis of liability.
VII

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The Court of Appeals, having found Sony liable, remanded for the District Court to consider
the propriety of injunctive or other relief. Because of my conclusion as to the issue of liability,
I, too, would not decide here what remedy would be appropriate if liability were found. I
concur, however, in the Court of Appeals' suggestion that an award of damages, or continuing
royalties, or even some form of limited injunction, may well be an appropriate means ofbalancing the equities in this case. n51 Although I express no view on the merits of any
particular proposal, I am certain that, if Sony were found liable in this case, the District Court
would be able to fashion appropriate relief. The District Court might conclude, of course, thata continuing royalty or other equitable relief is not feasible. The Studios then would be
relegated to statutory damages for proven instances of infringement. But the difficulty offashioning relief, and the possibility that complete relief may be unavailable, should not affectour interpretation of the statute.
n51 Other nations have imposed royalties on the manufacturers of products used toinfringe copyright. See, e. g., Copyright Laws and Treaties of the World (UNESCO/BNA
1982) (English translation), reprinting Federal Act on Copyright in Works of Literature
and Art and on Related Rights (Austria), ß ß 42(5)-(7), and An Act dealing with
Copyright and Related Rights (Federal Republic of Germany), Art. 53(5). A study
produced for the Commission of European Communities has recommended that theserequirements "serve as a pattern" for the European community. A. Dietz, Copyright Law
in the European Community 135 (1978). While these royalty systems ordinarily dependon the existence of authors' collecting societies, see id., at 119, 136, such collecting
societies are a familiar part of our copyright law. See generally Broadcast Music, Inc. v.
Columbia Broadcasting System, Inc., 441 U.S. 1, 4-5 (1979). Fashioning relief of thissort, of course, might require bringing other copyright owners into court throughcertification of a class or otherwise.
Like so many other problems created by the interaction of copyright law with a newtechnology, "[there] can be no really satisfactory solution to the problem presented here, until
Congress acts." Twentieth Century Music Corp. v. Aiken, 422 U.S., at 167 (dissenting opinion).
But in the absence of a congressional solution, courts cannot avoid difficult problems byrefusing to apply the law. We must "take the Copyright Act . . . as we find it," Fortnightly
Corp. v. United Artists Television, Inc., 392 U.S., at 401-402, and "do as little damage as
possible to traditional copyright principles . . . until the Congress legislates." Id., at 404(dissenting opinion).

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