Las Vegas, Nevada (April 10, 2000) – Sonic Solutions (NASDAQ: SNIC) and Terran Interactive, a wholly-owned subsidiary of Media 100 Inc. (NASDAQ: MDEA) today announced at the National Association of Broadcasters Convention (NAB) a strategic partnership agreement under which Terran Interactive will integrate Sonic’s AuthorScript™ technology directly into Media Cleaner Pro, enabling users to publish video content directly to DVD from the Media Cleaner Pro application. Incorporating the same award-winning DVD formatting technology used in Sonic’s DVD authoring applications, Sonic AuthorScript will allow Media Cleaner Pro users to convert a wide range of video formats into DVD-Video files for playback on set-top DVD-Video players or DVD-equipped PCs.

"DVD is the fastest growing consumer electronics format in history," said Dana Lo Piccolo-Giles, General Manager of Terran Interactive. "Working with Sonic, the industry leader in DVD publishing solutions, we plan to empower our users to directly publish video content for DVD within Media Cleaner Pro."

Sonic AuthorScript is the core DVD formatting engine that Sonic uses in its high-end DVD Creator and DVD Fusion for Macintosh authoring systems, as well as in Sonic DVDit!, the leading Windows-based DVD publishing application. Sonic AuthorScript runs on both the Windows and Macintosh platforms. The award-winning Media Cleaner Pro is the only cross-platform streaming media application that supports nearly every major video and audio format including QuickTime 4, RealG2, Windows Media Technologies, MPEG, AVI, MP3 and many others.

"Terran Interactive has powered the streaming video revolution, and their Media Cleaner Pro has become an industry standard for streaming media," said Mark Ely, Director of Product Marketing for Sonic Solutions. "By adding AuthorScript to Media Cleaner Pro, Terran Interactive will be able to offer their users a new world of high-quality, high-bandwidth digital video publishing on DVD. This will give Media Cleaner Pro users a simple Print-To-DVD function within the same award-winning application."

About Terran Interactive
Founded in 1995, Terran is a subsidiary of Media 100 with offices located in Los Gatos, California. Terran's mission is to develop powerful and easy-to-use tools that optimize and compress dynamic media, enabling users to enrich their Web, broadband, CD-ROM and DVD projects. Media Cleaner Pro, Terran's flagship product, is recognized as the industry standard for compressing digital media. Media Cleaner Pro supports all predominant video, audio and still image formats including QuickTime 4, RealG2, Windows Media Technologies, MPEG, AVI, MP3 and many others. For more information, visit http://www.terran.com or phone (408) 356-7373.

About Media 100 Inc.
Media 100 Inc. of Marlboro, Massachusetts, USA (Nasdaq:MDEA) is the pioneer of Streaming Media Production Tools for streaming video and audio over the Internet. Since 1993, its award winning Media 100 and Finish digital video systems for Macintosh and Windows NT have redefined the digital video industry by making content creation easier, more productive and more affordable for traditional video customers. With 24,000 systems installed in more than 50 countries worldwide, the Company's digital video systems are used in the creation of programs for broadcast and cable television, education, corporate training, animation, CD-ROM, DVD-ROM and streaming media for the Internet. For more information, visit www.media100.com. Terran Interactive, makers of Media Cleaner Pro and other digital video tools, is a wholly owned subsidiary of Media 100. For additional information, please contact Kevin Bourke of Media 100 at (508) 303-4825 or kbourke@media100.com.

About Sonic Solutions (NASDAQ: SNIC)
Based in Marin County, California, Sonic (http://www.sonic.com) is the leading manufacturer of solutions for DVD publishing and interactive, streaming video on the Internet. Sonic DVDit! (http://www.dvdit.com) is the first application for DVD authoring targeted at consumers and corporate video producers, and is bundled with major video editing, capture, encoding and media production systems. Streaming DVD is the first interactive technology based on DVD for content distribution over the Internet. Sonic DVD Creator and DVD Fusion for Macintosh 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. SonicStudio HD is the leading digital workstation for preparing audio for release on CD and the first for creating content for the new DVD-Audio format. Sonic is also a full voting member of the DVD Forum, the standards-setting body for the DVD format.