Digidesign® Licenses Sonic NoNOISE™ Technology

Emmy® Award-winning Audio Sound Restoration Software to Power Digidesign Plug-In Suite for ProTools™|HD Users

Las Vegas, Nevada (April 8, 2002) - Sonic Solutions (NASDAQ: SNIC) today announced at the National Association of Broadcasters Convention (NAB) that Digidesign, a Division of Avid Technology, Inc. (NASDAQ: AVID), has licensed Sonic's world-renowned NoNOISE sound restoration technology for integration into the Pro Tools|HD line of digital audio workstations. By incorporating NoNOISE as a suite of software plug-ins for Pro Tools|HD, Digidesign is able to provide thousands of its users with the world's leading solution for removing unwanted noise from recordings.

"Sonic is very pleased to be working with Digidesign to integrate NoNOISE into their line of Pro Tools|HD products," said Rolf Hartley, General Manager, Professional Products Group at Sonic. "The addition of NoNOISE to the Pro Tools|HD plug-in software suite brings our legendary audio restoration technology to a wide group of audio professionals in music, film and sound design. With the NoNOISE plug-in, ProTool|HD users will be able to take advantage of the most powerful sound restoration available."

Since it was first introduced in 1987, Sonic's NoNOISE technology has been used to restore hundreds of thousands of music, film, video and forensic recordings.NoNOISE can eliminate a wide variety of audio artifacts - hiss, scratches, hum, mechanical and impulsive noise, ambient and background noise - while preserving the integrity of the original recording.

NoNOISE is also very popular for cleaning up old film soundtracks as well as new production sound and dialogue for film and video recordings. NoNOISE has a strong following in the forensic community as well; it is used by intelligence and police organizations around the world.

Sonic was awarded a technical Emmy Award in 1996 for NoNOISE's outstanding contribution to the audio industry. "Sonic has long been recognized as a world leader in cutting-edge technology for the audio studio, and their NoNOISE restoration technology is second to none," said Ed Gray, Director, Partnering Programs at Digidesign. "By adding Sonic NoNOISE to our Pro Tools|HD suite of Plug-Ins, we can offer our broad base of users an invaluable studio tool that helps them deliver the best sound possible."

About Sonic Solutions (NASDAQ: SNIC)
Based in Marin County, California, Sonic (http://www.sonic.com) is the world's leading manufacturer of solutions for professional DVD title creation. Sonic MyDVD™ (http://www.mydvd.com) is the first DVD recording application for consumers, and is the leading DVD solution among DVD recorder and PC manufacturers. Sonic DVDit! ® (http://www.dvdit.com) is the leading DVD authoring application for videographers and corporate video producers; more than one million copies of DVDit! have been sold. Sonic DVD Creator®, Sonic Scenarist®, Sonic ReelDVD™ and Sonic DVD Fusion for Mac are the most widely-used systems for professional DVD publishing, and are installed worldwide at major studios, post production facilities and in corporate marketing departments. Sonic is a full voting member of the DVD Forum, the standards-setting body for the DVD format.

Sonic Solutions, the Sonic logo, DVD Editing, MyDVD, and ReelDVD are trademarks of Sonic Solutions. AuthorScript, Sonic DVD Creator, DVDit!, and Scenarist are registered trademarks of Sonic Solutions. All other company or product names are trademarks of their respective owners and, in some cases, are used by Sonic under license. Specifications, pricing and delivery schedules are subject to change without notice.