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                                                                    Exhibit 2.6


                    MASTER CONFIDENTIAL DISCLOSURE AGREEMENT

                                    BETWEEN

                                 ADAPTEC, INC.

                                      AND

                                  ROXIO, INC.





                       EFFECTIVE AS OF NOVEMBER __, 2000

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                    MASTER CONFIDENTIAL DISCLOSURE AGREEMENT

         This Master Confidential Disclosure Agreement (the "Agreement") is
effective as of November __, 2000 (the "Effective Date"), between Adaptec,
Inc., a Delaware corporation ("Adaptec"), and Roxio, Inc., a Delaware
corporation ("Roxio"). Adaptec and Roxio are sometimes referred to herein as
the "party" or the "parties."

         WHEREAS, the Board of Directors of each of Adaptec and Roxio have
determined that it is in the best interest of Adaptec and its stockholders to
separate Adaptec's existing businesses into two independent businesses;

         WHEREAS, as part of the foregoing, Adaptec and Roxio have entered into
a Master Separation Agreement (as defined below), which provides, among other
things, for the separation of certain Roxio assets and Roxio liabilities, the
initial public offering of Roxio stock, the distribution of such stock and the
execution and delivery of certain other agreements in order to facilitate and
provide for the foregoing; and

         WHEREAS, also as part of the foregoing, the parties further desire to
enter into this Agreement to provide for the protection of their Confidential
Information (as defined below).

         NOW, THEREFORE, in consideration of the mutual promises of the parties,
and of good and valuable consideration, it is agreed by and between the parties
as follows:

                                    ARTICLE I

                                  DEFINITIONS

         For the purpose of this Agreement the following capitalized terms are
defined in this Article I.

         1.1      ANCILLARY AGREEMENTS. "ANCILLARY AGREEMENTS" means the items
and agreements listed in Section 2.1 of the Master Separation Agreement and all
agreements and documents contemplated by such agreements.

         1.2      CONFIDENTIAL INFORMATION. "CONFIDENTIAL INFORMATION" means any
and all financial, technical, commercial or other information of Adaptec or
Roxio, as appropriate (whether written or oral), including, without limitation,
all information, notes, client lists and records, reports, analyses, financial
statements, compilations, studies, forms, business or management methods,
marketing data, fee schedules, information technology systems and programs,
projections, forecasts or trade secrets of Adaptec or Roxio, as applicable,
whether or not such Confidential Information is disclosed or otherwise made
available to one party by the other party pursuant to this Agreement.
Confidential Information shall also include the terms and provisions of this
Agreement and any transactions consummated or documents executed by the parties
pursuant to this Agreement. Confidential Information does not include any
information that (i) is or becomes generally available

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to and known by the public (other than as a result of an unpermitted disclosure
directly or indirectly by the Receiving Party or its affiliates, advisors or
representatives); (ii) is or becomes available to the Receiving Party on a
nonconfidential basis from a source other than the Disclosing Party or its
affiliates, advisors or representatives, provided that such source is not and
was not bound by a confidentiality agreement with or other obligation of secrecy
to the Disclosing Party; or (iii) has already been developed, or is hereafter
independently acquired or developed, by the Receiving Party without violating
any confidentiality agreement with or other obligation of secrecy to the
Disclosing Party.

         1.3      CONFIDENTIALITY PERIOD. "CONFIDENTIALITY PERIOD" means, (i)
with respect to Confidential Information that is not Highly Confidential
Information, five (5) years, and (ii) with respect to Highly Confidential
Information, in perpetuity, after either (A) the Separation Date with respect to
Confidential Information of the Disclosing Party that is known to or in the
possession of the Receiving Party as of the Separation Date or (B) the date of
disclosure with respect to Confidential Information that is disclosed by the
Disclosing Party to the Receiving Party after the Separation Date.

         1.4      DISCLOSING PARTY. "DISCLOSING PARTY" means the party owning or
disclosing the relevant Confidential Information.

         1.5      DISPUTES. "DISPUTES" has the meaning set forth in the Master
Separation Agreement.

         1.6      DISTRIBUTION DATE. "DISTRIBUTION DATE" has the meaning set
forth in the Master Separation Agreement.

         1.7      HIGHLY CONFIDENTIAL INFORMATION. "HIGHLY CONFIDENTIAL
INFORMATION" means Confidential Information that is source code for products
that are commercially released or for which substantial steps have been taken to
commercialization.

         1.8      MASTER SEPARATION AGREEMENT. "MASTER SEPARATION AGREEMENT"
means the Master Separation and Distribution Agreement between the parties.

         1.9      PERSON. "PERSON" has the meaning set forth in the Master
Separation Agreement.

         1.10     RECEIVING PARTY. "RECEIVING PARTY" means the non-owning party
or recipient of the relevant Confidential Information.

         1.11     RESIDUALS. "RESIDUALS" means information retained in the
unaided memory of an individual who has had access to Confidential Information
without conscious attempt by such individual to memorize such information.


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         1.12     SEPARATION DATE. "SEPARATION DATE" has the meaning set forth
in the Master Separation Agreement.

         1.13     SUBSIDIARY. "SUBSIDIARY" means with respect to any specified
Person, any corporation, any limited liability company, any partnership or other
legal entity of which such Person or its Subsidiaries owns, directly or
indirectly, more than 50% of the stock or other equity interest entitled to vote
on the election of the members of the board of directors or similar governing
body. Unless context otherwise requires, reference to Adaptec and its
Subsidiaries shall not include the subsidiaries of Adaptec that will be
transferred to Roxio after giving effect to the Separation (as defined in the
Master Separation Agreement).

         1.14     THIRD PARTY. "THIRD PARTY" means a Person other than Adaptec,
its Subsidiaries and their respective employees and Roxio, its Subsidiaries and
their respective employees.

         1.15     TRANSACTION AGREEMENTS. "TRANSACTION AGREEMENTS" means the
Master Separation Agreement and the Ancillary Agreements.

                                   ARTICLE II

                                CONFIDENTIALITY

         2.1      CONFIDENTIALITY AND NON-USE OBLIGATIONS. During the
Confidentiality Period, the Receiving Party shall (i) protect the Confidential
Information of the Disclosing Party by using the same degree of care, but no
less than a reasonable degree of care, to prevent the unauthorized use,
dissemination, or publication of the Confidential Information as the Receiving
Party uses to protect its own Confidential Information of a like nature, (ii)
not use such Confidential Information in violation of any use restriction in any
Transaction Agreement, and (iii) not disclose such Confidential Information to
any Third Party, except as expressly permitted under this Agreement, in the
Transaction Agreements or in any other agreements entered into between the
parties in writing, without prior written consent of the Disclosing Party.

         2.2      DISCLOSURE TO SUBLICENSEES. The Receiving Party has the right
to disclose to its permitted sublicensees portions of Confidential Information
as reasonably necessary in the exercise of the Receiving Party's right to grant
sublicenses that is expressly granted under any Transaction Agreement, subject
to the sublicensee's agreement in writing to confidentiality and non- use terms
at least as protective of the Disclosing Party's Confidential Information as the
provisions of this Agreement.

         2.3      CONTRACT MANUFACTURERS AND FOUNDRIES. The Receiving Party has
the right to disclose to its permitted contract manufacturers and foundries
portions of the Confidential Information as reasonably necessary in the exercise
of the Receiving Party's "have made" rights that are expressly granted under any
Transaction Agreement, subject to the contract manufacturer's and foundry's
agreement in writing to confidentiality and non-use terms at least as protective
of the Disclosing Party's Confidential Information as the provisions of this
Agreement.


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         2.4      RESIDUALS. Notwithstanding any other provision of this
Agreement, the Receiving Party shall be free, and the Disclosing Party hereby
grants to the Receiving Party, except as otherwise provided in this Section 2.4
the right, to use for any purpose the Residuals resulting from access to or work
with the Confidential Information of the Disclosing Party. The Receiving Party
shall have no obligation to pay royalties for any use of Residuals. However,
this Section 2.4 does not grant the Receiving Party any rights under any patents
or copyrights of the Disclosing Party. The preceding sentence shall not operate
to relieve the Receiving Party from paying royalties to the Disclosing Party
under any future patent or copyright license between them.

         2.5      COMPELLED DISCLOSURE. If the Receiving Party or any of its
respective Subsidiaries believes that it will be compelled by a court or other
authority to disclose Confidential Information of the Disclosing Party, it shall
(i) give the Disclosing Party prompt and timely written notice so that the
Disclosing Party may take steps to oppose such disclosure, but in any event the
Receiving Party shall not be prohibited from complying with such requirement and
(ii) cooperate with the Disclosing Party in its attempts to oppose such
disclosure, provided that such opposition is reasonable in light of applicable
law or regulation. If the Receiving Party complies with the above, it shall not
be prohibited from complying with such requirements to disclose, but shall
cooperate with the Disclosing Party to take all reasonable steps to make such
disclosure subject to a suitable protective order or otherwise prevent
unrestricted or public disclosure.

         2.6      NO RESTRICTION ON DISCLOSING PARTY. Nothing in this Agreement
shall restrict the Disclosing Party from using, disclosing, or disseminating its
own Confidential Information in any way provided that, in so doing, it does not
use, disclose or disseminate any Confidential Information of the Receiving
Party.

         2.7      NO RESTRICTION ON REASSIGNMENT. This Agreement shall not
restrict reassignment of the Receiving Party's employees.

         2.8      THIRD PARTY RESTRICTIONS. Nothing in the Agreement supersedes
any restriction imposed by Third Parties on their Confidential Information, and
there is no obligation on the Disclosing Party to conform Third Party agreements
to the terms of this Agreement.

                                   ARTICLE III

                              WARRANTY DISCLAIMER

         EACH PARTY ACKNOWLEDGES AND AGREES THAT ALL CONFIDENTIAL INFORMATION IS
PROVIDED ON AN "AS IS, WHERE IS" BASIS AND THAT NEITHER PARTY NOR ANY OF ITS
SUBSIDIARIES HAS MADE OR WILL MAKE ANY WARRANTY WHATSOEVER WITH RESPECT TO
CONFIDENTIAL INFORMATION, EXPRESS, IMPLIED OR STATUTORY, INCLUDING, WITHOUT
LIMITATION, ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
PURPOSE, TITLE, ENFORCEABILITY OR NON-INFRINGEMENT.


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                                   ARTICLE IV

                              TERM AND TERMINATION

         4.1      TERM. This Agreement shall remain in full force and effect
unless and until terminated by the mutual written agreement of the parties.

         4.2      SURVIVAL. Articles II (with respect to Confidential
Information acquired or disclosed prior to the date of termination), III, V, and
VI shall survive any termination of this Agreement.

                                   ARTICLE V

                               DISPUTE RESOLUTION

         Resolution of any and all Disputes arising from or in connection with
this Agreement shall be exclusively governed by and settled in accordance with
the provisions of this Article V.

         5.1      NEGOTIATION. The parties shall make a good faith attempt to
resolve any Dispute arising out of or relating to this Agreement through
informal negotiation between appropriate representatives from each of Adaptec
and Roxio. If at any time either party feels that such negotiations are not
leading to a resolution of the Dispute, such party may send a notice to the
other party describing the Dispute and requesting a meeting of the senior
executives from each party. Within ten (10) business days after such notice of a
Dispute is given, each party shall select appropriate senior executives (e.g.,
director or V.P. level) of each party who shall have the authority to resolve
the matter and shall meet to attempt in good faith to negotiate a resolution of
the Dispute prior to pursuing other available remedies. During the course of
negotiations under this Section 5.1, all reasonable requests made by one party
to the other for information, including requests for copies of relevant
documents, will be honored. The specific format for such negotiations will be
left to the discretion of the designated negotiating senior executives but may
include the preparation of agreed upon statements of fact or written statements
of position furnished to the other party. In the event that any Dispute arising
out of or related to this Agreement is not settled by the parties within thirty
(30) days after the first meeting of the negotiating senior executives, either
party may commence litigation with respect to the Dispute. However, except as
provided below in Section 5.2, neither party shall commence litigation against
the other party to resolve the Dispute (i) until the parties try in good faith
to settle the Dispute by negotiation for at least thirty (30) days after the
first meeting of the negotiating senior executives or (ii) until forty (40) days
after notice of a Dispute is given by either party to the other party, whichever
occurs first.

         5.2      PROCEEDINGS. Any Dispute regarding the following is not
required to be negotiated prior to seeking relief from a court of competent
jurisdiction: breach of any obligation of confidentiality; infringement,
misappropriation, or misuse of any intellectual property right; or any other
claim where interim relief from the court is sought to prevent serious and
irreparable injury to a party. However, the parties shall make a good faith
effort to negotiate such Dispute, according to Section 5.1, while such court
action is pending.


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         5.3      CONTINUITY OF SERVICE AND PERFORMANCE. Unless otherwise agreed
in writing, the parties will continue to provide service and honor all other
commitments under this Agreement and each Ancillary Agreement during the course
of dispute resolution pursuant to the provisions of this Article V with respect
to all matters not subject to such dispute, controversy or claim.

                                   ARTICLE VI

                            MISCELLANEOUS PROVISIONS

         6.1      LIMITATION OF LIABILITY. IN NO EVENT SHALL EITHER PARTY OR ITS
SUBSIDIARIES BE LIABLE TO THE OTHER PARTY OR ITS SUBSIDIARIES FOR ANY SPECIAL,
CONSEQUENTIAL, INDIRECT, INCIDENTAL OR PUNITIVE DAMAGES, LOST DATA OR LOST
PROFITS, HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY (INCLUDING NEGLIGENCE)
ARISING IN ANY WAY OUT OF THIS AGREEMENT, WHETHER OR NOT SUCH PARTY HAS BEEN
ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

         6.2      EXPORT RESTRICTIONS. Both parties shall adhere to all
applicable laws, regulations and rules relating to the export of technical data,
and shall not export or reexport any technical data, any products received from
Disclosing Party, or the direct product of such technical data, to any
proscribed country listed in such applicable laws, regulations and rules unless
properly authorized.

         6.3      NO IMPLIED LICENSES. Nothing contained in this Agreement shall
be construed as conferring any rights by implication, estoppel or otherwise,
under any intellectual property right, other than the rights expressly granted
in this Agreement with respect to Confidential Information. Neither party is
required hereunder to furnish or disclose to the other any technical or other
information.

         6.4      INFRINGEMENT SUITS. Neither party shall have any obligation
hereunder to institute any action or suit against Third Parties for
misappropriation of any of its Confidential Information or to defend any action
or suit brought by a Third Party that alleges infringement of any intellectual
property rights by the Receiving Party's authorized use of the Disclosing
Party's Confidential Information.

         6.5      ENTIRE AGREEMENT. This Agreement, the Master Separation
Agreement, the other Ancillary Agreements and the Exhibits and Schedules
referenced or attached hereto and thereto constitute the entire agreement
between the parties with respect to the subject matter hereof and shall
supersede all prior written and oral and all contemporaneous oral agreements and
understandings with respect to the subject matter hereof.

         6.6      GOVERNING LAW. This Agreement shall be construed in accordance
with and all Disputes hereunder shall be governed by the laws of the State of
California, excluding its conflict of law rules and the United Nations
Convention on Contracts for the International Sale of Goods. The Superior Court
of Santa Clara County and/or the United States District Court for the Northern


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District of California, San Jose Division, shall have jurisdiction and venue
over all Disputes between the parties that are permitted to be brought in a
court of law pursuant to Article V above.

         6.7      NOTICES. Any notice, demand, offer, request or other
communication required or permitted to be given by either party pursuant to the
terms of this Agreement shall be in writing and shall be deemed effectively
given the earlier of (i) when received, (ii) when delivered personally, (iii)
one (1) Business Day after being delivered by facsimile (with electronic receipt
of appropriate confirmation), (iv) one (1) Business Day after being deposited
with a nationally recognized overnight courier service or (v) four (4) days
after being deposited in the U.S. mail, First Class with postage prepaid, and
addressed to the attention of:

              IF TO ADAPTEC, INC.:

                      Adaptec, Inc.
                      691 S. Milpitas Blvd.
                      Milpitas, CA 95035
                      Attention:  Vice President and General Counsel
                      Facsimile No.:  (408) 957-7137

              with a copy to:

                      Wilson Sonsini Goodrich & Rosati, Professional Corporation
                      650 Page Mill Road
                      Palo Alto, CA 94304-1050
                      Attention:  Henry P. Massey, Jr.
                      Facsimile No.:  650-493-6811

              IF TO ROXIO, INC.:

                      Roxio, Inc.
                      461 South Milpitas Blvd.
                      Milpitas, CA 95035
                      Attention:  [             ]
                      Facsimile No.:  [                 ]

              with a copy to:

                      Gray Cary Ware & Freidenrich LLP
                      400 Capitol Mall, Suite 2400
                      Sacramento, CA 95814
                      Attention:  Kevin A. Coyle
                      Facsimile No.:  916-930-3201

Adaptec and Roxio may substitute a different address or facsimile number, from
time to time, if such substitute is provided to the intended notice recipient in
writing by notice given in the manner provided in this Section 6.7.


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         6.8      COUNTERPARTS. This Agreement, including other documents
referred to herein, may be executed in counterparts, each of which shall be
deemed to be an original but all of which shall constitute one and the same
agreement.

         6.9      BINDING EFFECT; ASSIGNMENT. This Agreement shall inure to the
benefit of and be binding upon the parties hereto and their respective legal
representatives and successors, and nothing in this Agreement, express or
implied, is intended to confer upon any other Person any rights or remedies of
any nature whatsoever under or by reason of this Agreement. This Agreement may
be enforced separately by each member of the Adaptec Group and each member of
the Roxio Group. Except as herein specifically provided to the contrary, neither
party may assign this Agreement or any rights or obligations hereunder, without
the prior written consent of the other party, and any such assignment shall be
void; provided, however, either party (or its permitted successive assignees or
transferees hereunder) may assign or transfer this Agreement as a whole without
consent to an entity that succeeds to all or substantially all of the business
or assets of such party to which this Agreement relates.

         6.10     SEVERABILITY. The parties hereto have negotiated and prepared
the terms of this Agreement in good faith with the intent that each and every
one of the terms, covenants and conditions herein be binding upon and inure to
the benefit of the respective parties. Accordingly, if any one or more of the
terms, provisions, promises, covenants or conditions of this Agreement or the
application thereof to any person or circumstance shall be adjudged to any
extent invalid, unenforceable, void or voidable for any reason whatsoever by a
court of competent jurisdiction, such provision shall be as narrowly construed
as possible, and each and all of the remaining terms, provisions, promises,
covenants and conditions of this Agreement or their application to other persons
or circumstances shall not be affected thereby and shall be valid and
enforceable to the fullest extent permitted by law. To the extent this Agreement
is in violation of applicable law, then the parties agree to negotiate in good
faith to amend the Agreement, to the extent possible consistent with its
purposes, to conform to law.

         6.11     WAIVER OF BREACH. The waiver by either party hereto of a
breach or violation of any provision of this Agreement shall not operate as, or
be construed to constitute, a waiver of any subsequent breach of the same or
another provision hereof.

         6.12     AMENDMENT AND EXECUTION. This Agreement and amendments hereto
shall be in writing and executed in multiple copies via facsimile or otherwise
on behalf of Adaptec and Roxio by their respective duly authorized officers and
Representatives. Each multiple copy shall be deemed an original, but all
multiple copies together shall constitute one and the same instrument.

         6.13     AUTHORITY. Each of the parties hereto represents to the other
that (a) it has the corporate or other requisite power and authority to execute,
deliver and perform this Agreement, (b) the execution, delivery and performance
of this Agreement by it have been duly authorized by all necessary corporate or
other actions, (c) it has duly and validly executed and delivered this
Agreement, and (d) this Agreement is a legal, valid and binding obligation,
enforceable against it in accordance with its terms subject to applicable
bankruptcy, insolvency, reorganization, moratorium or other similar laws
affecting creditors' rights generally and general equity principles.


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         6.14     DESCRIPTIVE HEADINGS. The headings contained in this Agreement
are for reference purposes only and shall not affect in any way the meaning or
interpretation of this Agreement. When a reference is made in this Agreement to
an Article or a Section, such reference shall be to an Article or Section of
this Agreement unless otherwise indicated.

         6.15     GENDER AND NUMBER. Whenever the context of this Agreement
requires, the gender of all words herein shall include the masculine, feminine
and neuter, and the number of all words herein shall include the singular and
plural.

         6.16     ADDITIONAL ASSURANCES. Except as may be specifically provided
herein to the contrary, the provisions of this Agreement shall be self-operative
and shall not require further agreement by the parties; provided, however, at
the request of either party, the other party shall execute such additional
instruments and take such additional acts as are reasonable, and as the
requesting party may reasonably deem necessary, to effectuate this Agreement.

         6.17     FORCE MAJEURE. Neither party shall be liable or deemed to be
in default for any delay or failure in performance, other than of
confidentiality and use restrictions, under this Agreement or other interruption
of service deemed to result, directly or indirectly, from acts of God, civil or
military authority, acts of public enemy, war, accidents, explosions,
earthquakes, floods, failure of transportation, strikes or other work
interruptions by either party's employees, or any other similar cause beyond the
reasonable control of either party unless such delay or failure in performance
is expressly addressed elsewhere in this Agreement


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         WHEREFORE, the parties have signed this Master Confidential Disclosure
Agreement effective as of the date first set forth above.

ADAPTEC, INC.                                 ROXIO, INC.

By:                                           By:
   ------------------------------                -------------------------------

Name:                                         Name:
     ----------------------------                  -----------------------------

Title:                                        Title:
      ---------------------------                   ----------------------------