EXHIBIT 4.07


                        AMENDMENT TO RIGHTS AGREEMENT

1.     General Background.  In accordance with Section 27 of the Rights
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       Agreement between BankBoston, N.A. (the "Rights Agent") and Oak
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       Technology, Inc., ("Oak Technology") dated 8/19/97 (the "Agreement"),
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       the Rights Agent and Oak Technology desire to amend the Agreement to
       appoint EquiServe Trust Company, N.A.

2.     Effectiveness.  This Amendment shall be effective as of October 15, 2001
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       (the "Amendment") and all defined terms and definitions in the Agreement
       shall be the same in the Amendment except as specifically revised by the
       Amendment.

3.     Revision.  The section in the Agreement entitled "Change of Rights
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       Agent" is hereby deleted in its entirety and replaced with the
       following:

       Change of Right Agent.  The Rights Agent or any successor Rights Agent
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       may resign and be discharged from its duties under this Agreement upon
       30 days' notice in writing mailed to the Company and to each transfer
       agent of the Common Shares or Preferred shares by registered or
       certified mail and to the holders of the Right Certificates by first-
       class mail.  The Company may remove the Rights Agent or any successor
       rights Agent upon 30 days' notice in writing mailed to the Rights Agent
       or successor Rights Agent, as the case may be, and to each transfer
       agent of the Common Shares or Preferred Shares by registered or
       certified mail, and to the holders of the Right Certificates by first-
       class mail.  If the Rights Agent shall resign or be removed or shall
       otherwise become incapable of acting, the Company shall appoint a
       successor to the Rights Agent.  If the Company shall fail to make such
       appointment within a period of 30 days after giving notice of such
       removal or after it has been notified in writing of such resignation or
       incapacity by the resigning or incapacitated rights Agent or by the
       holder of a right Certificate (who shall, with such notice, submit such
       holder's Right Certificate for inspection by the company), then the
       registered holder of any Right Certificate may apply to any court of
       competent jurisdiction for the appointment of a new Rights Agent.  Any
       successor Rights Agent, whether appointed by the Company or by such a
       court, shall be a corporation or trust company organized and doing
       business under the laws of the United States, in good standing, which is
       authorized under such laws to exercise corporate trust or stock transfer
       powers and is subject to supervision or examination by federal or state
       authority and which has individually or combined with an affiliate at
       the time of its appointment as Rights Agent a combined capital and
       surplus of at least $100 million dollars.  After appointment, the
       successor Rights Agent shall be vested with the same powers, rights,
       duties and responsibilities as if it had been originally named as Rights
       Agent without further act or deed; but the predecessor Rights Agent
       shall deliver and transfer to the successor Rights Agent any property at
       the time held by it hereunder, and execute and deliver any further
       assurance, conveyance, act or deed necessary for the purpose.  Not later
       than the effective date of any such appointment the Company shall file
       notice thereof in writing with the predecessor Rights Agent and each
       transfer agent of the Common Shares or Preferred Shares, and mail a
       notice thereof in writing to the registered holder of the Right
       Certificates.  Failure to give any notice provided for in this Section
       21, however, or any defect therein, shall not affect the legality or
       validity of the resignation or removal of the Rights Agent or the
       appointment of the successor Rights Agent, as the case may be.


4.     Except as amended hereby, the Agreement and all schedules or exhibits
       thereto shall remain in full force and effect.

IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be
executed in their names and on their behalf by and through their duly
authorized officers, as of this 15th day of October, 2001.


<PAGE>


Oak Technology, Inc.                        BankBoston, N.A.



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By:  David J. Power                         By:
Title:  Vice President, General Counsel     Title:
        & Secretary


                                            EquiServe Trust Company, N.A.


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                                            By:
                                            Title:

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