Document:

<PAGE>   1
                                                                     EXHIBIT 4.1

     THIS WARRANT AND ANY SHARES ACQUIRED UPON THE EXERCISE OF THIS WARRANT HAVE
NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE
"SECURITIES ACT"), OR APPLICABLE STATE SECURITIES LAWS AND HAVE BEEN ISSUED
PURSUANT TO AN EXEMPTION THEREFROM. EXCEPT AS PERMITTED UNDER APPLICABLE FEDERAL
AND STATE SECURITIES LAWS, THE WARRANT AND ANY SHARES ACQUIRED UPON THE EXERCISE
OF THIS WARRANT MAY NOT BE SOLD OR OTHERWISE DISPOSED OF IN THE ABSENCE OF AN
EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT AND APPLICABLE STATE
SECURITIES LAWS, OR AN OPINION OF COUNSEL ACCEPTABLE TO THE COMPANY THAT SUCH
REGISTRATION IS NOT REQUIRED.

                    *****************************************

                             SONICblue Incorporated

                          COMMON STOCK PURCHASE WARRANT

                    *****************************************

     This certifies that, for good and valuable consideration, SONICblue
Incorporated, a Delaware corporation (the "Company"), grants to VIABASE, Inc.
(BVI), a corporation organized under the laws of the British Virgin Islands (the
"Warrantholder"), the right to subscribe for and purchase from the Company the
number of validly issued, fully paid and nonassessable shares (the "Warrant
Shares") of the Company's Common Stock, $0.0001 par value (the "Common Stock"),
specified in Section 1.1 hereof, at the purchase price per share (the "Exercise
Price") set forth in Section 1.3 hereof, exercisable at any time and from time
to time during the period (the "Exercise Period") commencing on the date hereof
and ending on the fourth anniversary of the date hereof, unless terminated
earlier pursuant to Section 1.5 hereof, all subject to the terms, conditions and
adjustments herein set forth. See Section 8 for definitions of certain terms
used herein.

                                      -1-
<PAGE>   2

     1.   NUMBER OF WARRANT SHARES; DURATION AND EXERCISE OF WARRANT;
          DETERMINATION OF EXERCISE PRICE; PAYMENT OF TAXES.

     1.1  NUMBER OF WARRANT SHARES.

     This Warrant shall enable the Warrantholder to purchase two million
(2,000,000) shares of Common Stock, subject to the provisions of Section 6
hereof.

     1.2  DURATION AND EXERCISE OF WARRANT.

     (a)  Cash Exercise. This Warrant may be exercised by the Warrantholder by
(i) the surrender of this Warrant to the Company, with a duly executed Exercise
Form specifying the number of Warrant Shares to be purchased (which number shall
be no fewer than 100,000 shares), during normal business hours on any Business
Day during the Exercise Period and (ii) the delivery of payment to the Company,
for the account of the Company, by wire transfer of immediately available funds
to a bank account specified by the Company, of the Exercise Price for the number
of Warrant Shares specified in the Exercise Form in lawful money of the United
States of America. The Company agrees that such Warrant Shares shall be deemed
to be issued to the Warrantholder as the record holder of such Warrant Shares as
of the close of business on the date on which this Warrant shall have been
surrendered and payment made for the Warrant Shares as aforesaid. A stock
certificate or certificates for the Warrant Shares specified in the Exercise
Form shall be delivered to the Warrantholder as promptly as practicable, and in
any event within 10 days, thereafter. The stock certificate or certificates so
delivered shall be in denominations of 100 shares each or such lesser or greater
denominations as may be reasonably specified by the Warrantholder in the
Exercise Form. If this Warrant shall have been exercised only in part, the
Company shall, at the time of delivery of the stock certificate or certificates,
deliver to the Warrantholder a new Warrant evidencing the rights to purchase the
remaining Warrant Shares, which new Warrant shall in all other respects be
identical with this Warrant. No adjustments shall be made on Warrant Shares
issuable on the exercise of this Warrant for any cash dividends paid or payable
to holders of record of Common Stock prior to the date as of which the
Warrantholder shall be deemed to be the record holder of such Warrant Shares.

     (b)  Net Issue Exercise. In lieu of exercising this Warrant pursuant to
Section 1.2(a) hereof, this Warrant may be exercised by the Warrantholder by the
surrender of this Warrant to the Company, with a duly executed Exercise Form
marked to reflect Net Issue Exercise and specifying the number of Warrant Shares
to be purchased, during normal business hours on any Business Day during the
Exercise Period. The Company agrees that such Warrant Shares shall be deemed to
be issued to the Warrantholder as the record holder of such Warrant Shares as of
the close of business on the date on which this Warrant shall have been
surrendered as aforesaid. Upon such exercise, the Warrantholder shall be
entitled to receive shares equal to the value of this Warrant (or the portion
hereof being exercised) computed as of the date of surrender of this Warrant to
the Company using the following formula:

        X = Y x (A-B)
            ---------
                A

                                      -2-
<PAGE>   3

Where X = the number of shares of Common Stock to be issued to Warrantholder
          under this Section 1.2(b);

      Y = the number of shares of Common Stock otherwise purchasable under
          this Warrant (at the date of such calculation), which number shall not
          be less than 100,000;

      A = the fair market value of one share of Common Stock (at the date of
          such calculation);

      B = the Exercise Price.

     (c)  Fair Market Value. For purposes of Sections 1.2(b) and 6.1(d), "fair
market value" of one share of Common Stock shall mean:

          (i)  the average closing price per share of the Common Stock on the
     principal national securities exchange on which the Common Stock is listed
     or admitted to trading for the ten (10) Trading Day period ending three (3)
     Trading Days prior to the date of exercise or,

          (ii) if not listed or traded on any such exchange, the average last
     reported sale price per share of the Common Stock on the Nasdaq National
     Market or The Nasdaq SmallCap Market (collectively, "Nasdaq") for the ten
     (10) Trading Day period ending three (3) Trading Days prior to the date of
     exercise, or

          (iii) if not listed or traded on any such exchange or Nasdaq, the
     average of the mean of the bid and asked prices per share of the Common
     Stock as reported in the OTC Bulletin Board or, if not so reported, in the
     "pink sheets" published by the National Quotation Bureau, Inc. for the ten
     (10) Trading Day period ending three (3) Trading Days prior to the date of
     exercise, or

          (iv) if such quotations are not available, the fair market value per
     share of the Common Stock as of the date in question as reasonably
     determined by the Board of Directors of the Company.

     1.3  EXERCISE PRICE. The Exercise Price shall be $10.00 per share of Common
Stock, subject to the provisions of Section 6 hereof.

     1.4  PAYMENT OF TAXES. The issuance of certificates for Warrant Shares
shall be made without charge to the Warrantholder for any stock transfer or
other issuance tax in respect thereto; provided, however, that the Warrantholder
shall be required to pay any and all taxes which may be payable in respect of
any transfer involved in the issuance and delivery of any certificate in a name
other than that of the then Warrantholder as reflected upon the books of the
Company.

     1.5  EARLY TERMINATION. Notwithstanding anything herein to the contrary,
this warrant shall immediately cease to be exercisable and all rights of the
Warrantholder hereunder shall immediately terminate upon a material breach by
Warrantholder or JV of Amended and

                                      -3-
<PAGE>   4

Restated Investment Agreement, dated as of August 28, 2000, by and between the
Company, VIA Technologies, Inc. and JV, including, without limitation, Section
5.13 thereof.

     2.   RESTRICTIONS ON TRANSFER; RESTRICTIVE LEGENDS.

     2.1  RESTRICTIONS ON TRANSFER; COMPLIANCE WITH SECURITIES LAWS. This
Warrant and the Warrant Shares issued upon the exercise of the Warrant may not
be transferred or assigned in whole or in part without compliance with all
applicable federal and state securities laws by the transferor and transferee
(including the delivery of investment representation letters and legal opinions
reasonably satisfactory to the Company, if such are requested by the Company).
The Warrantholder, by acceptance hereof, acknowledges that this Warrant and the
Warrant Shares to be issued upon exercise hereof are being acquired solely for
the Warrantholder's own account and not as a nominee for any other party, and
for investment, and that the Warrantholder will not offer, sell or otherwise
dispose of any Warrant Shares to be issued upon exercise hereof except under
circumstances that will not result in a violation of the Securities Act or any
state securities laws. Upon exercise of this Warrant, the Warrantholder shall,
if requested by the Company, confirm in writing, in a form satisfactory to the
Company, that the Warrant Shares so purchased are being acquired solely for the
Warrantholder's own account and not as a nominee for any other party, for
investment, and not with a view toward distribution or resale.

     2.2  RESTRICTIVE LEGENDS. This Warrant shall (and each Warrant issued upon
transfer in whole or in part of this Warrant pursuant to this Section 2 or
issued in substitution for this Warrant issued pursuant to Section 4 shall) be
stamped or otherwise imprinted with a legend in substantially the following
form:

          "THIS WARRANT AND ANY SHARES ACQUIRED UPON THE EXERCISE OF THIS
     WARRANT HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS
     AMENDED (THE "SECURITIES ACT"), OR APPLICABLE STATE SECURITIES LAWS AND
     HAVE BEEN ISSUED PURSUANT TO AN EXEMPTION THEREFROM. EXCEPT AS PERMITTED
     UNDER APPLICABLE FEDERAL AND STATE SECURITIES LAWS, THE WARRANT AND ANY
     SHARES ACQUIRED UPON THE EXERCISE OF THIS WARRANT MAY NOT BE SOLD OR
     OTHERWISE TRANSFERRED IN THE ABSENCE OF AN EFFECTIVE REGISTRATION STATEMENT
     UNDER THE SECURITIES ACT AND APPLICABLE STATE SECURITIES LAWS, OR AN
     OPINION OF COUNSEL ACCEPTABLE TO THE COMPANY THAT SUCH REGISTRATION IS NOT
     REQUIRED."

Except as otherwise permitted by this Section 2, each stock certificate for
Warrant Shares issued upon the exercise of any Warrant and each stock
certificate issued upon the direct or indirect transfer of any such Warrant
Shares shall be stamped or otherwise imprinted with a legend in substantially
the following form:

          "THE SHARES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED
     UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), OR
     APPLICABLE STATE SECURITIES LAWS, AND HAVE BEEN ISSUED PURSUANT TO AN

                                      -4-
<PAGE>   5

     EXEMPTION THEREFROM. EXCEPT AS PERMITTED UNDER APPLICABLE FEDERAL AND STATE
     SECURITIES LAWS, THE SHARES MAY NOT BE SOLD, TRANSFERRED, ASSIGNED OR
     OTHERWISE DISPOSED OF IN THE ABSENCE OF AN EFFECTIVE REGISTRATION UNDER THE
     SECURITIES ACT AND APPLICABLE STATE SECURITIES LAWS, OR AN OPINION OF
     COUNSEL ACCEPTABLE TO THE COMPANY THAT SUCH REGISTRATION IS NOT REQUIRED."

     Notwithstanding the foregoing, the Warrantholder may require the Company to
issue a stock certificate for Warrant Shares without a legend if (i) such
Warrant Shares, as the case may be, have been registered for resale under the
Securities Act or sold pursuant to Rule 144 under the Securities Act (or a
successor rule thereto) or (ii) the Warrantholder has received an opinion of
counsel reasonably satisfactory to the Company that such registration is not
required with respect to such Warrant Shares.

     3.   RESERVATION AND REGISTRATION OF SHARES, ETC.

     The Company covenants and agrees that all Warrant Shares which are issuable
upon the exercise of this Warrant will, upon issuance, be validly issued, fully
paid and nonassessable and free from all taxes, liens, security interests,
charges and other encumbrances with respect to the issue thereof, other than
taxes in respect of any transfer occurring contemporaneously with such issue.
The Company further covenants and agrees that, during the Exercise Period, the
Company will at all times have authorized and reserved, and keep available free
from preemptive rights, a sufficient number of shares of Common Stock to provide
for the exercise of the rights represented by this Warrant and will, at its
expense, upon each such reservation of shares, procure such listing of such
shares of Common Stock (subject to issuance or notice of issuance) as then may
be required on all stock exchanges on which the Common Stock is then listed or
on Nasdaq.

     4.   EXCHANGE, LOSS OR DESTRUCTION OF WARRANT.

     Upon receipt by the Company of evidence satisfactory to it of the loss,
theft, destruction or mutilation of this Warrant and, in the case of loss, theft
or destruction, of such bond or indemnification as the Company may require, and,
in the case of such mutilation, upon surrender and cancellation of this Warrant,
the Company will execute and deliver a new Warrant of like tenor. The term
"Warrant" as used in this Agreement shall be deemed to include any Warrants
issued in substitution or exchange for this Warrant.

     5.   OWNERSHIP OF WARRANT.

     The Company may deem and treat the person in whose name this Warrant is
registered as the holder and owner hereof (notwithstanding any notations of
ownership or writing hereon made by anyone other than the Company) for all
purposes and shall not be affected by any notice to the contrary.

                                      -5-
<PAGE>   6

     6.   CERTAIN ADJUSTMENTS.

     6.1  The number of Warrant Shares purchasable upon the exercise of this
Warrant and the Exercise Price shall be subject to adjustment as follows:

          (a)  Stock Dividends. If at any time prior to the exercise of this
Warrant in full (i) the Company shall fix a record date for the issuance of any
stock dividend payable in shares of Common Stock or (ii) the number of shares of
Common Stock shall have been increased by a subdivision or split-up of shares of
Common Stock, then, on the record date fixed for the determination of holders of
Common Stock entitled to receive such dividend or immediately after the
effective date of subdivision or split-up, as the case may be, the number of
shares of Common Stock to be delivered upon exercise of this Warrant will
increased so that the Warrantholder will be entitled to receive the number of
shares of Common Stock that such Warrantholder would have owned immediately
following such action had this Warrant been exercised immediately prior thereto,
and the Exercise Price will be adjusted as provided below in paragraph (f).

          (b)  Combination of Stock. If at any time prior to the exercise of
this Warrant in full the number of shares of Common Stock outstanding shall have
been decreased by a combination of the outstanding shares of Common Stock, then,
immediately after the effective date of such combination, the number of shares
of Common Stock to be delivered upon exercise of this Warrant will be decreased
so that the Warrantholder thereafter will be entitled to receive the number of
shares of Common Stock that such Warrantholder would have owned immediately
following such action had this Warrant been exercised immediately prior thereto,
and the Exercise Price will be adjusted as provided below in paragraph (f).

          (c)  Reorganization, etc. If at any time prior to the exercise of this
Warrant in full any capital reorganization of the Company, or any
reclassification of the Common Stock, or any consolidation of the Company with
or merger of the Company with or into any other person or any sale, lease or
other transfer of all or substantially all of the assets of the Company to any
other person, shall be effected in such a way that the holders of Common Stock
shall be entitled to receive stock, other securities or assets (whether such
stock, other securities or assets are issued or distributed by the Company or
another person) with respect to or in exchange for Common Stock, then, upon
exercise of this Warrant the Warrantholder shall have the right to receive the
kind and amount of stock, other securities or assets receivable upon such
reorganization, reclassification, consolidation, merger or sale, lease or other
transfer by a holder of the number of shares of Common Stock that such
Warrantholder would have been entitled to receive upon exercise of this Warrant
had this Warrant been exercised immediately before such reorganization,
reclassification, consolidation, merger or sale, lease or other transfer,
subject to adjustments that shall be as nearly equivalent as may be practicable
to the adjustments provided for in this Section 6.

          (d)  Fractional Shares. No fractional shares of Common Stock or scrip
shall be issued to any Warrantholder in connection with the exercise of this
Warrant. Instead of any fractional shares of Common Stock that would otherwise
be issuable to such Warrantholder, the Company will pay to such Warrantholder a
cash adjustment in respect of such fractional interest in an

                                      -6-
<PAGE>   7

amount equal to that fractional interest of the fair market value of one share
of Common Stock as of the date of exercise.

     (e)  Carryover. Notwithstanding any other provision of this Section 6, no
adjustment shall be made to the number of shares of Common Stock to be delivered
to the Warrantholder (or to the Exercise Price) if such adjustment represents
less than 1% of the number of shares to be so delivered, but any lesser
adjustment shall be carried forward and shall be made at the time and together
with the next subsequent adjustment which together with any adjustments so
carried forward shall amount to 1% or more of the number of shares to be so
delivered.

     (f)  Exercise Price Adjustment. Whenever the number of Warrant Shares
purchasable upon the exercise of the Warrant is adjusted, as herein provided,
the Exercise Price payable upon the exercise of this Warrant shall be adjusted
by multiplying such Exercise Price immediately prior to such adjustment by a
fraction, of which the numerator shall be the number of Warrant Shares
purchasable upon the exercise of the Warrant immediately prior to such
adjustment, and of which the denominator shall be the number of Warrant Shares
purchasable immediately thereafter.

     (g)  No Duplicate Adjustments. Notwithstanding anything else to the
contrary contained herein, in no event will an adjustment be made under the
provisions of this Section 6 to the number of Warrant Shares issuable upon
exercise of this Warrant or the Exercise Price for any event if an adjustment
having substantially the same effect to the Warrantholder as any adjustment that
otherwise would be made under the provisions of this Section 6 is made by the
Company for any such event to the number of shares of Common Stock (or other
securities) issuable upon exercise of this Warrant.

     6.2  NO ADJUSTMENT FOR DIVIDENDS. Except as provided in Section 6.1, no
adjustment in respect of any dividends shall be made during the term of the
Warrant or upon the exercise of this Warrant.

     6.3  NOTICE OF ADJUSTMENT. Whenever the number of Warrant Shares or the
Exercise Price of such Warrant Shares is adjusted, as herein provided, the
Company shall promptly mail by first class, postage prepaid, to the
Warrantholder, notice of such adjustment or adjustments and a certificate of the
chief financial officer of the Company setting forth the number of Warrant
Shares and the Exercise Price of such Warrant Shares after such adjustment,
setting forth a brief statement of the facts requiring such adjustment and
setting forth the computation by which such adjustment was made.

     7.   NOTICES OF CORPORATE ACTION.

     In the event of

     (a)  any taking by the Company of a record of the holders of any class of
securities for the purpose of determining the holders thereof who are entitled
to receive any dividend or other distribution, or any right to subscribe for,
purchase or otherwise acquire any shares of stock of any class or any other
securities or property, or to receive any other right, or

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<PAGE>   8

     (b)  any capital reorganization of the Company, any reclassification or
recapitalization of the capital stock of the Company or any Change of Control,
or

     (c)  any voluntary or involuntary dissolution, liquidation or winding-up of
the Company,

the Company will mail to the Warrantholder a notice specifying (i) the date or
expected date on which any such record is to be taken for the purpose of such
dividend, distribution or right and the amount and character of any such
dividend, distribution or right, (ii) the date or expected date on which any
such reorganization, reclassification, recapitalization, Change of Control,
dissolution, liquidation or winding-up is to take place and the time, if any
such time is to be fixed, as of which the holders of record of Common Stock (or
other securities) shall be entitled to exchange their shares of Common Stock (or
other securities) for the securities or other property deliverable upon such
reorganization, reclassification, recapitalization, Change of Control,
dissolution, liquidation or winding-up and (iii) that in the event of a Change
of Control, the Warrants are exercisable immediately prior to the consummation
of such Change of Control. Such notice shall be mailed at least 20 days prior to
the date therein specified, in the case of any date referred to in the foregoing
subdivision (i), and at least 20 days prior to the date therein specified, in
the case of the date referred to in the foregoing subdivision (ii).

     8.   DEFINITIONS.

     As used herein, unless the context otherwise requires, the following terms
have the following respective meanings:

     Business Day: any day other than a Saturday, Sunday or a day on which
national banks are authorized by law to close in the City of New York, State of
New York.

     Change of Control: shall mean (i) the consolidation of the Company with or
merger of the Company with or into any other person in which the Company is not
the surviving corporation and after which persons who were not stockholders of
the Company immediately prior to such merger or consolidation own immediately
after such merger or consolidation 50% or more of the voting power of the
outstanding securities of each of the continuing or surviving entity and any
direct or indirect parent corporation of such continuing or surviving entity,
(ii) the sale of all or substantially all of the assets of the Company to any
other person, or (iii) any sale or transfer of any capital stock of the Company
after the date of this Agreement, following which 50% of the combined voting
power of the Company becomes beneficially owned by one person or group acting
together. For purposes of this definition, "group" shall have the meaning as
such term is used in Section 13(d)(1) under the Exchange Act.

     Company: SONICblue Incorporated, a Delaware corporation.

     Exchange Act: the Securities Exchange Act of 1934, as amended, or any
successor federal statute, and the rules and regulations of the SEC thereunder,
all as the same shall be in effect at the time. Reference to a particular
section of the Securities Exchange Act of 1934, as amended, shall include a
reference to a comparable section, if any, of any successor federal statute.

                                      -8-
<PAGE>   9

     Exercise Form: an Exercise Form in the form annexed hereto as Exhibit A.

     Exercise Price: the meaning specified on the cover of this Warrant, as such
price may be adjusted pursuant to Section 6 hereof.

     Nasdaq: the meaning specified in Section 1.2(c)(ii).

     SEC: the Securities and Exchange Commission or any other federal agency at
the time administering the Securities Act or the Exchange Act, whichever is the
relevant statute for the particular purpose.

     Securities Act: the Securities Act of 1933, as amended, or any successor
federal statute, and the rules and regulations of the Commission thereunder, all
as the same shall be in effect at the time. Reference to a particular section of
the Securities Act of 1933, as amended, shall include a reference to the
comparable section, if any, of any successor federal statute.

     Trading Day: any day other than a day on which securities are not traded,
listed or reported on the principal national securities exchange or securities
market on which the Common Stock is traded, listed or reported.

     Warrantholder: the meaning specified on the cover of this Warrant.

     Warrant Shares: the meaning specified on the cover of this Warrant, subject
to the provisions of Section 6.

     9.   MISCELLANEOUS.

     9.1  ENTIRE AGREEMENT. This Warrant constitutes the entire agreement
between the Company and the Warrantholder with respect to this Warrant.

     9.2  BINDING EFFECTS; BENEFITS. This Warrant shall inure to the benefit of
and shall be binding upon the Company and the Warrantholder and their respective
successors. Nothing in this Warrant, expressed or implied, is intended to or
shall confer on any person other than the Company and the Warrantholder, or
their respective successors, any rights, remedies, obligations or liabilities
under or by reason of this Warrant.

     9.3  AMENDMENTS AND WAIVERS. This Warrant may not be modified or amended
except by an instrument or instruments in writing signed by the Company and the
Warrantholder. Either the Company or the Warrantholder may, by an instrument in
writing, waive compliance by the other party with any term or provision of this
Warrant on the part of such other party hereto to be performed or complied with.
The waiver by any such party of a breach of any term or provision of this
Warrant shall not be construed as a waiver of any subsequent breach.

     9.4  SECTION AND OTHER HEADINGS. The section and other headings contained
in this Warrant are for reference purposes only and shall not be deemed to be a
part of this Warrant or to affect the meaning or interpretation of this Warrant.

                                      -9-
<PAGE>   10

     9.5  FURTHER ASSURANCES. Each of the Company and the Warrantholder shall do
and perform all such further acts and things and execute and deliver all such
other certificates, instruments and documents as the Company or the
Warrantholder may, at any time and from time to time, reasonably request in
connection with the performance of any of the provisions of this Agreement.

     9.6  NOTICES. All notices and other communications required or permitted to
be given under this Warrant shall be in writing and shall be deemed to have been
duly given if delivered personally or sent by United States mail, postage
prepaid, or by facsimile (with electronic confirmation of successful
transmission) to the parties hereto at the following addresses or to such other
address as any party hereto shall hereafter specify by notice to the other party
hereto:

     (a) if to the Company, addressed to:

         SONICblue Incorporated
         2801 Mission College Blvd.
         Santa Clara, California 95052
         Attention:  President
         Telecopier:  (408) 980-5445

     with a copy to:

         Pillsbury Winthrop LLP
         2550 Hanover Street
         Palo Alto, California 94304
         Attention:  Jorge A. Del Calvo, Esq.
         Telecopier:  (650) 233-4545

     (b)  if to the Warrantholder, addressed to:

          VIA Technologies, Inc.
          8F, No. 553 Chung-Cheng Rd.
          Hsing-Tien, Taipei
          Taiwan
          Attention:  President
          Telecopier:  886-2-2218-7970

     with a copy to:

          Heller Ehrman White & McAuliffe LLP
          525 University Ave.
          Palo Alto, CA 94301-1900
          Attention:  Sarah A. O'Dowd, Esq.
          Telecopier:  (650) 324-0638

Except as otherwise provided herein, all such notices and communications shall
be deemed to have been received on the date of delivery thereof, if delivered
personally, or on the third Business Day after the mailing thereof.

                                      -10-
<PAGE>   11

     9.7  SEVERABILITY. Any term or provision of this Warrant which is invalid
or unenforceable in any jurisdiction shall, as to such jurisdiction, be
ineffective to the extent of such invalidity or unenforceability without
rendering invalid or unenforceable the terms and provisions of this Warrant or
affecting the validity or enforceability of any of the terms or provisions of
this Warrant in any other jurisdiction.

     9.8  GOVERNING LAW. This Warrant shall be deemed to be a contract made
under the laws of the State of Delaware (irrespective of its choice of law
principles).

     9.9  NO RIGHTS OR LIABILITIES AS STOCKHOLDER. Nothing contained in this
Warrant shall be determined as conferring upon the Warrantholder any rights as a
stockholder of the Company or as imposing any liabilities on the Warrantholder
to purchase any securities whether such liabilities are asserted by the Company
or by creditors or stockholders of the Company or otherwise.

     IN WITNESS WHEREOF, the Company has caused this Warrant to be signed by its
duly authorized officer.

     Dated: January 3, 2001.

                                     SONICblue Incorporated

                                     By /s/ Ken Potashner
                                        ----------------------------
                                     Title  Chief Executive Officer
                                          --------------------------

                                      -11-
<PAGE>   12

                                   EXHIBIT A

THIS WARRANT AND ANY SHARES ACQUIRED UPON THE EXERCISE OF THIS WARRANT HAVE NOT
BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, AND MAY NOT BE
SOLD OR OTHERWISE TRANSFERRED EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION
STATEMENT FILED UNDER SUCH ACT OR PURSUANT TO AN EXEMPTION FROM REGISTRATION
UNDER SUCH ACT.

                                  EXERCISE FORM

                 (To be executed upon exercise of this Warrant)

     The undersigned hereby irrevocably elects to exercise the right,
represented by this Warrant, to purchase Warrant Shares and (check one):

     [ ]  herewith tenders payment for ____________ of the Warrant Shares to
          the order of SONICblue Incorporated in the amount of $______________
          in accordance with the terms of this Warrant; or

     [ ]  herewith tenders this Warrant for ____________ Warrant Shares pursuant
          to the Net Issue Exercise provisions of Section 1.2(b) of the Warrant.

The undersigned requests that a certificate (or certificates) for such Warrant
Shares be registered in the name of the undersigned and that such certificate
(or certificates) be delivered to the undersigned's address below.

The undersigned represents that (i) the Warrant Shares are being acquired for
the account of the undersigned for investment and not with a view to, or for
resale in connection with, the distribution thereof and that the undersigned has
no present intention of distributing or reselling such Warrant Shares; (ii) the
undersigned is aware of the Company's business affairs and financial condition
and has acquired sufficient information about the Company to reach an informed
and knowledgeable decision regarding its investment in the Company; (iii) the
undersigned is an accredited investor within the meaning of Rule 501(a) adopted
under the Securities Act of 1933, as amended (the "Securities Act"), and is
experienced in making investments of this type and has such knowledge and
background in financial and business matters that the undersigned is capable of
evaluating the merits and risks of this investment and protecting the
undersigned's own interests; (iv) the undersigned understands that the Warrant
Shares have not been registered under the Securities Act by reason of a specific
exemption from the registration provisions of the Securities Act, which
exemption depends upon, among other things, the bona fide nature of the
investment intent as expressed herein, and, because such securities have not
been registered under the Securities Act, they must be held indefinitely unless
subsequently registered under the Securities Act or an exemption from such
registration is available; (v) the undersigned is aware that the Warrant Shares
may not be sold pursuant to Rule 144 adopted under the Securities Act unless
certain conditions are met and until the undersigned has held the Warrant Shares
for the number of years prescribed by Rule 144; and (vi) the undersigned agrees
not to make any disposition of all or any part of the Warrant Shares unless and
until there is then in effect a registration statement under the Securities Act
covering such

                                      -12-
<PAGE>   13

proposed disposition and such disposition is made in accordance with said
registration statement, or the undersigned has provided the Company with an
opinion of counsel satisfactory to the Company, stating that such registration
is not required, or unless such Warrant Shares are sold in accordance with Rule
144 adopted under the Securities Act.

Dated: _________________________________

Signature ______________________________ _______________________________________
                                                      (Print Name)

                                         _______________________________________
                                                    (Street Address)

                                         _______________________________________
                                                (City), (State) (Zip Code)

     If said number of shares shall not be all the shares purchasable under the
within Warrant, a new Warrant is to be issued in the name of said undersigned
for the balance remaining of the shares purchasable thereunder.

                                      -13-<PAGE>   1
PROMISSORY NOTE                                                   EXHIBIT 10.34
---------------

U.S. $250,000.00                                                  June 19, 2000

            FOR VALUE RECEIVED, BIONUTRICS, INC., a Nevada corporation
("Borrower"), hereby promises to pay to the order of MILTON OKIN ("Lender"), at
the office of Lender located at 306 Brevoort Lane, Rye, New York 10580, the
principal amount of $250,000.00, together with interest on the principal balance
outstanding hereunder, from (and including) the date of disbursement until (but
not including) the date of payment, at a per annum rate equal to the Stated
Interest Rate specified below or, to the extent applicable, the Default Interest
Rate specified below, in accordance with the following terms and conditions:

      1. CONTRACTED FOR RATE OF INTEREST. The contracted for rate of interest of
the indebtedness evidenced hereby, without limitation, shall consist of the
following:

            (a) The Stated Interest Rate (as hereinafter defined), as from time
to time in effect, calculated daily on the basis of actual days elapsed over a
365-day year, applied to the principal balance from time to time outstanding
hereunder; and

            (b) The Default Interest Rate (as hereinafter defined), as from time
to time in effect, calculated daily on the basis of actual days elapsed over a
365-day year, applied to the principal balance from time to time outstanding
hereunder.

Borrower agrees to pay an effective contracted for rate of interest which is the
sum of the Stated Interest Rate referred to in Subsection 1(a) above, plus any
additional rate of interest resulting from the application of the Default
Interest Rate referred to in Subsection 1(b) above.

      2. STATED INTEREST RATE. Except as provided in Section 3 below, the
principal balance outstanding hereunder from time to time shall bear interest at
the Stated Interest Rate. The Stated Interest Rate shall be equal to 9.5% per
annum.

      3. DEFAULT INTEREST RATE. The Default Interest Rate shall be a per annum
rate equal to 15%. The principal balance outstanding hereunder from time to time
shall bear interest at the Default Interest Rate from the date of the occurrence
of an Event of Default (as hereinafter defined) hereunder until the earlier of:
(a) the date on which the principal balance outstanding hereunder, together with
all accrued interest and other amounts payable hereunder, are paid in full; or
(b) the date on which such Event of Default is timely cured in a manner
satisfactory to Lender.

      4. PAYMENTS. The principal balance outstanding hereunder, together with
all accrued and unpaid interest and other amounts payable hereunder, if not
sooner paid as provided herein, shall be due and payable one hundred twenty
(120) days from the date hereof.

      5. PREPAYMENTS. Payments of principal hereof may be made at any time, or
from time to time, in whole or in part, without penalty. Borrower shall provide
Lender with written notice five (5) days prior to any such prepayment. Within
such five (5) day period, Lender shall
<PAGE>   2
have the right to exercise its Conversion Rights (defined below) with respect to
such prepayment amount or the entire outstanding amounts due herein in
accordance with Section 6 below.

      6. CONVERSION RIGHTS. Subject to Section 5 above, Lender shall have the
right at any time to convert (the "Conversion Rights") any and all outstanding
amounts hereunder into common stock of Borrower at the conversion rate of $2.00
per share. Lender shall exercise its Conversion Rights by delivering to Borrower
written notice (the "Conversion Notice") of its intention to exercise such
rights. Such conversion shall be effective five (5) days after receipt of the
Conversion Notice by Borrower. Any amounts due under this Note converted to
common stock of Borrower pursuant to the Conversion Rights shall be deemed paid
and satisfied.

      7. EVENTS OF DEFAULT; ACCELERATION. The occurrence of any one or more of
the following events shall constitute an "Event of Default" hereunder, and upon
such Event of Default, the entire principal balance outstanding hereunder,
together with all accrued interest and other amounts payable hereunder, at the
election of Lender, shall become immediately due and payable: (a) nonpayment of
principal, interest or other amounts when the same shall become due and payable
hereunder, and (b) the failure of Borrower to comply with any provision of this
Note.

      8. WAIVERS. Except as set forth in this Note, to the extent permitted by
applicable law, Borrower, and each person who is or may become liable hereunder,
severally waive and agree not to assert: (a) any exemption rights; (b) demand,
diligence, grace, presentment for payment, protest, notice of nonpayment,
nonperformance, extension, dishonor, maturity, protest and default; and (c)
recourse to guaranty or suretyship defenses (including, without limitation, the
right to require the Lender to bring an action on this Note).

      9. COSTS OF COLLECTION. If this Note shall be placed in the hands of an
attorney for collection, by suit or otherwise, then Borrower's obligations
hereunder shall include the payment of all collection costs and expenses
incurred by Lender in connection therewith, including, without limitation,
reasonable attorneys' fees and costs.

      10. GOVERNING LAW. This Note shall be construed in accordance with and
governed by the laws of the State of Arizona, without regard to the choice of
law rules of the State of Arizona.

      11. BINDING NATURE. The provisions of this Note shall be binding upon
Borrower and its successors and assigns, and shall inure to the benefit of
Lender and its successors and assigns.

      12. NOTICE. Any notice or other communication with respect to this Note
shall: (a) be in writing; (b) be effective on the day of hand-delivery thereof
to the party to whom directed, one day following the day of deposit thereof with
delivery charges prepaid, with a national overnight delivery service, or two
days following the day of deposit thereof with postage prepaid, with the United
States Postal Service, by regular first class, certified or registered mail; (c)
if directed to Lender, be addressed to Lender at the office of Lender set forth
above, or to such other address as Lender shall have specified to Borrower by
like notice; and (d) if directed to Borrower, be addressed to Borrower at the
address for Borrower set forth below Borrower's name, or to such other address
as Borrower shall have specified by like notice.

2
<PAGE>   3
      13. SECTION HEADINGS. The section headings set forth in this Note are for
convenience only and shall not have substantive meaning hereunder or be deemed
part of this Note.

      14. CONSTRUCTION. This Note shall be construed as a whole, in accordance
with its fair meaning, and without regard to or taking into account any
presumption or other rule of law requiring construction against the party
preparing this Note.

      IN WITNESS WHEREOF, Borrower has executed this Note as of the date first
set forth above.

                                          "BORROWER"

                                          BIONUTRICS, INC., a Nevada corporation

                                          By:  /s/  Ronald H. Lane
                                               --------------------
                                          Name:  Ronald H. Lane
                                                 -----------------------------
                                          Title:  President and CEO
                                                  ----------------------------

                                          ADDRESS OF BORROWER:

                                          2425 E. Camelback Road
                                          Suite #650
                                          Phoenix, Arizona 85016

3

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