POWER OF ATTORNEY





 KNOW ALL MEN BY THESE PRESENTS, that the undersigned hereby

constitutes and appoints Sharon Spehar, Stock Plan Administrator, Charles

Van Orden, Vice President and General Counsel and Megan Comport,

Associate General Counsel and each of them, his true and lawful attorney-

in-fact to:



  (1) execute for and on behalf of the undersigned, in the

undersigned's capacity as an officer and/or director of SanDisk Corporation

(the "Corporation"), any and all Form 3, 4 and 5 reports

required to be filed by the undersigned in accordance with Section 16(a)

of the Securities Exchange Act of 1934 and the rules thereunder;



  (2) do and perform any and all acts for and on behalf of

the undersigned which may be necessary or desirable to complete and

execute any such Form 3, 4 or 5 report and timely file such report with

the United States Securities and Exchange Commission and any stock

exchange or similar authority; and



  (3) take any other action of any type whatsoever in

connection with the foregoing which, in the opinion of such attorney-in-

fact, may be of benefit to, in the best interest of, or legally required

by, the undersigned, it being understood that the documents executed by

such attorney-in-fact on behalf of the undersigned, pursuant to this

Power of Attorney, shall be in such form and shall contain such terms and

conditions as such attorney-in-fact may approve in his discretion.



 The undersigned hereby grants to each such attorney-in-fact full

power and authority to do and perform each and every act and thing

whatsoever requisite, necessary, and proper to be done in the exercise of

any of the rights and powers herein granted, as fully to all intents and

purposes as the undersigned might or could do if personally present, with

full power of substitution or revocation, hereby ratifying and confirming

all that such attorney-in-fact, or his substitute or substitutes, shall

lawfully do or cause to be done by virtue of this Power of Attorney and

the rights and powers herein granted.  The undersigned acknowledges that

no such attorney-in-fact, in serving in such capacity at the request of

the undersigned, is hereby assuming, nor is the Corporation hereby

assuming, any of the undersigned's responsibilities to comply with

Section 16 of the Securities Exchange Act of 1934.



 This Power of Attorney shall remain in full force and effect until

the undersigned is no longer required to file Form 3, 4 and 5 reports

with respect to the undersigned's holdings of and transactions in

securities issued by the Corporation, unless earlier revoked by the

undersigned in a signed writing delivered to the foregoing attorneys-in-fact.





  IN WITNESS WHEREOF, the undersigned has caused this Power of

Attorney to be executed as of this 21st day of May, 2004.





Signature

/s/ Catherine P. Lego



Catherine P. Lego

Print Name