Latest MyDVD Delivers Substantial Feature Enhancements and a New Complete CD and DVD Burning Suite for Video, Photos, Music, Backup, and Copying

Marin County, California ( September 18, 2003 ) - Sonic Solutions (NASDAQ: SNIC) today announced the launch of MyDVD Studio Deluxe 5, a major upgrade to the industry's leading software for DVD creation. MyDVD Studio Deluxe 5 includes powerful new features such as fully-integrated video editing, Dolby Digital audio encoding, unlimited MP3 ripping, automated backup and archiving, exact CD and DVD disc copy, and other product enhancements. Published by Adaptec, Inc., (NASDAQ: ADPT) at retail and available from Sonic at estore.sonic.com , MyDVD Studio Deluxe 5 is the flagship of the MyDVD version 5 product line. MyDVD products are available at a range of price points to meet the varying needs of consumers looking to burn content to CD and DVD.

"MyDVD Studio Deluxe 5 is a significant expansion to the DVD authoring solution we've delivered in previous versions of MyDVD," said Rob Halligan, vice president of marketing, Desktop Products Group at Sonic. "It offers the easiest, most complete CD and DVD creation capabilities of any consumer CD and DVD burning product. In fact, our whole MyDVD 5 product line delivers a truly ideal blend of ease-of-use, flexibility, and powerful features, which has made it the preferred DVD burning software brand of major PC and DVD drive manufacturers."

"Sonic's MyDVD 5 enables consumers to manage their video and audio content with more ease and customization options than ever before," said Jeff Loebbaka, vice president and general manager of Adaptec's Desktop Solutions Group. "In addition to publishing MyDVD 5, we plan to include the software in our VideOh! video-capture solutions. We're pleased to partner with Sonic to bring the award-winning software to home-PC users who want greater control over their digital, home-entertainment experience."

The new Sonic MyDVD 5 product line includes:

• MyDVD Studio Deluxe 5 - The flagship of Sonic's new product line, MyDVD Studio Deluxe features everything users need to burn high-quality, fully-compatible CDs and DVDs. It includes integrated video editing and special effects, Dolby Digital encoding for 50% more video per disc*, Hollywood-style menus and buttons, and OpenDVD^® technology to re-edit previously burned discs. Unlimited MP3 ripping and automatic noise leveling provide broad flexibility in music CD creation. Automated back-up functions deliver easy archiving of important data, and powerful disc copy tools create exact disc copies of CDs and DVDs. MyDVD Studio Deluxe 5 also includes a premium DVD movie player and integrated disc labeling. Estimated street price: $99.99
• MyDVD Studio Video Edition 5 – This product offers the same DVD and Video CD creation features as MyDVD Studio Deluxe 5, including integrated video editing, special effects, and Dolby Digital audio encoding. MyDVD Studio Video Edition also includes a premium DVD movie player. Estimated street price: $79.99
• MyDVD Deluxe 5 offers complete CD and DVD video authoring with integrated video editing. Estimated street price: $69.99
• MyDVD 5 offers complete CD and DVD video authoring. Estimated street price: $49.99

"Whether you have both video neophytes and professionals in the same family or workgroup, or you're a fast learner at advancing to pro-level yourself, MyDVD Studio Deluxe has both the ease of use and power to make your videos look and sound fantastic," said Richard Doherty, research director for the Envisioneering Group. "Sonic's audio/video, DVD and VideoCD tools heritage comes through in delivering the highest quality disk possible. This release extends that savvy to unique technologies such as Dolby Digital audio (AC-3 audio encoding), OpenDVD for re-editing previously burned DVDs, and unlimited MP3 ripping for music CD creation."

MyDVD Studio Deluxe 5 and MyDVD Studio Video Edition 5 are published by Adaptec and available at major retailers in North America . MyDVD 5, MyDVD Deluxe 5 and MyDVD Studio Deluxe 5 are currently available on Sonic's webstore at estore.sonic.com.

About Sonic Solutions (NASDAQ: SNIC)
Based in Marin County , California , Sonic Solutions (http://www.sonic.com) is the world's leading supplier of DVD creation software for professional, industrial and consumer applications. The majority of major film releases on DVD have been produced on Sonic's professional DVD authoring systems in studios around the world. Sonic's MyDVD® and DVDit!® are the most widely used DVD creation applications by consumers and video enthusiasts and are the solutions of choice among the key PC and after-market drive suppliers. Sonic's RecordNow™ is a leading solution for audio and data mastering. Sonic's AuthorScript® , the DVD and CD formatting and burning engine that underlies Sonic's applications, is the most widely deployed DVD software engine and has been licensed by Adobe, Microsoft, Sony, and many others.

* Dolby Digital audio allows you to put 20-50% more video on a DVD (depending on your video capture quality setting) than you can in previous versions of MyDVD and most other tools.

Sonic, the Sonic logo, Backup MyPC, CinePlayer, DVD Producer, Edit-on-DVD, NoNOISE, OpenDVD, Sonic PrimeTime, RecordNow and Simple Backup are trademarks of Sonic Solutions. AuthorScript, AutoDVD, DVDit!, DVD Fusion, MyDVD, PrePlay, ReelDVD, Scenarist, Sonic DVD Creator and Sonic Solutions 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.