Marin County, California (June 6, 2003) ­ Sonic Solutions® (NASDAQ: SNIC) announced today that SnapStream Media, a leading developer of digital entertainment software, has selected the Sonic AuthorScript-PVR software development kit (SDK) as the MPEG encoding and time-shifting engine for their PC-based TV recording software, Personal Video Station 3. Complementing the Windows Media format supported in earlier versions of Personal Video Station, AuthorScript-PVR greatly extends the functionality and compatibility of Personal Video Station, adding support for MPEG compression - the most popular video recording and playback standard.

"The Sonic AuthorScript-PVR SDK has allowed us to meet our market objectives of giving users the ability to pause and rewind live television. Additionally, Personal Video Station 3's use of the AuthorScript-PVR MPEG-compression engine means users can take their favorite TV recordings made with SnapStream and burn them to DVD using third-party software," said Rakesh Agrawal, President and CEO, SnapStream Media. "It's our goal to improve our customers' home entertainment experience, and by incorporating Sonic's software we are able to provide them with a complete solution for personal video recording and time-shifting using the MPEG format."

SnapStream Personal Video Station 3 gives users complete control of their TV recording experience. SnapStream's powerful new program guide, SnapStream.NET, lets users record every episode of a favorite TV show with a single click. A comprehensive search engine allows the user to quickly find and record their favorite programs while a new "trick-play" function allows users to pause, rewind and fast forward live television. SnapStream offers an ideal solution for existing PCs owners who want a powerful yet simple way to record programs on their PC.

"We are pleased that our encoding, stream-handling, and time-shifting technology was selected by SnapStream to augment the newest version of their industry-leading digital video recording software," said Jim Taylor, General Manager of Sonic's Advanced Technology Group. "Our collaboration with SnapStream gives home PC users the flexibility to record programs for playback on the plentiful selection of MPEG-compatible devices."

SnapStream Personal Video Station Version 3 is available at a suggested retail price of $99.99 at Amazon.com and from SnapStream at www.snapstream.com. As a special promotion during the launch, the software will be available for the price of Version 2.0, $49.99.

About Sonic AuthorScript
The Sonic AuthorScript Software Development Kit (SDK) is the world's most popular media publishing engine. A modular set of media conversion, formatting, burning, and playback tools controlled through a simple and intuitive application programming interface (API), Sonic AuthorScript enables third parties to rapidly add support for CD and DVD technologies to their applications, including DVD-Video and Video CD authoring, data mastering, music CD ripping and burning, PVR recording and timeshifting, and DVD-Video and Video CD playback. Sonic AuthorScript has been licensed by industry-leading companies including Adobe, AOL, Avid, Cyberlink, InterVideo, Microsoft, and Sony. It also underlies Sonic's DVD applications including PrimeTime™, MyDVD®, and DVDit!® which are bundled by major OEMs such as Adaptec, Compaq, Dell, Fujitsu, Hewlett-Packard, NEC, Panasonic, Philips, Pioneer, Sony, TDK, Toshiba, and others.

In addition to AuthorScript for PCs, AuthorScript CE allows consumer electronics manufacturers to incorporate the Sonic AuthorScript engine in Linux-based set-top devices such as DVD recorders, PVRs/DVRs, and home media servers. AuthorScript CE links the CE and PC worlds by including support for OpenDVD^® ­ technology that writes project information along with the content, allowing users to quickly and easily revise and update recorded DVDs on a PC or an advanced DVD recorder. Some modules of AuthorScript are also available for the Mac OS.

About Personal Video Station 3
Personal Video Station 3 is market-leading software for TV recording on the PC. The software is optimized for ease of installation and ease of use and enables consumers to intelligently record every episode of their favorite television show. At the product's core is an electronic program guide, SnapStream.Net, which is included as a part of the software license and does not require any monthly or yearly subscription fees. In addition to providing basic TV recording capabilities, Personal Video Station also turns the consumer PC into a media server, allowing TV shows to be distributed over the home network to multiple devices inside the home including Pocket PC handheld devices, Tablet PC devices. The software supports 802.11b, 802.11g, 802.11a and wired networks for distribution.

About SnapStream Media
Based in Houston, Texas SnapStream Media (http://www.snapstream.com) was founded in 1999 by Richard Kuo and Rakesh Agrawal. Privately held, SnapStream Media's mission is to create compelling entertainment applications for consumers that embrace PC and PC technology as well as traditional consumer electronics devices. The company's main product was showcased by Bill Gates in his keynote at the worldwide launch of Windows XP and was called "dazzlingly cool" by the Los Angeles Times.

Press inquires can be sent to pr@snapstream.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.

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