EXHIBIT 99.1

CERTIFICATION PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Digital Generation Systems, Inc. (the “Company”) on Form 10-Q for the quarterly period ended June 30, 2002, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned, in the capacities and dates indicated below, hereby certify pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that: (1) the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and (2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Dated: August 14, 2002	By:	/s/    MATTHEW E. DEVINE
		Matthew E. Devine Chief Executive Officer

Dated: August 14, 2002	By:	/s/    OMAR A. CHOUCAIR
		Omar A. Choucair Chief Financial Officer