Roxio Licenses Divx For Award-Winning Digital Media Software

Advanced Video Compression Technology from DivXNetworks to be Included in Future Easy CD & DVD Creator™ and VideoWave® Releases

Santa Clara, California - (December 9, 2003) - Roxio®, a division of Sonic Solutions® (NASDAQ: SNIC), the leader in digital media software, announced today a licensing agreement with DivXNetworks, Inc. Under terms of the agreement, DivX® video compression technology will be integrated into Roxio's line of best-selling burning and digital video software. Roxio products that will include DivX technology include follow on releases of Easy CD & DVD Creator™: The Digital Media Suite® and VideoWave®.

The addition of DivX technology will enable Roxio customers to more easily acquire, edit and create video content using one of the most popular video formats available. DivX video content can then be burned onto CD and played back on DivX Certified™ set top players or shared over the Internet.

DivX technology efficiently compresses video content into a more manageable file size without sacrificing quality, allowing it to be more easily stored or shared. For example, an MPEG-2 video file, the format used for DVD-Video, can be compressed down to one tenth of its original size. VHS-quality video can be reduced to nearly one hundredth of its original size without losing frames, size or resolution. Using DivX video compression, Roxio applications will enable users to reduce digital video down to sizes small enough to be sent over the Internet, while maintaining excellent visual quality.

"Roxio strives to provide our customers with the broadest range of tools with which to be creative with their digital media," said Vito Salvaggio, Roxio Vice President of Product Management. "DivX has earned a great reputation among video enthusiasts. By integrating DivX technology in our products, we're making it easy for Roxio's customers to create video projects in a popular, highly compressed format for viewing on their PCs, burning to CD or sharing via the Internet without compromising picture size or quality."

"With over 100 million users worldwide, our technology is quickly becoming the standard in video compression," said Kevin Hell, DivXNetworks' Chief Marketing Officer and Managing Director. "Roxio's leadership position in CD and DVD creation for the PC and the Macintosh gives us a great opportunity to reach a broad audience of digital media consumers with an easy-to-use multimedia application that takes advantage of the great performance and visual quality of DivX video."

About DivXNetworks:

DivXNetworks is a consumer-focused video technology company positioned at the center of multimedia convergence. The company's core offering is the DivX ® video codec, the popular video compression technology with over 100 million users worldwide. Often called "the MP3 of video," the patent-pending DivX video technology offers DVD-quality at 10 times greater compression than MPEG-2 files, enabling full length films to easily fit on a CD or be delivered over broadband connections. DivX video technology powers a range of applications that span the convergence value chain, from a secure IP-based video-on-demand solution to next-generation consumer electronics products and video software applications. DivXNetworks is headquartered in San Diego, California, with satellite offices in Los Angeles and San Jose, CA, Taipei, Taiwan, and Dortmund, Germany. For more information, visit http://www.divxnetworks.com.

About Roxio

Roxio, a division of Sonic Solutions, develops and markets the best-selling digital media software in the world. Roxio offers award-winning software products for CD/DVD burning, photo editing and video editing and has an installed base of over 150 million users. Roxio distributes its products globally through strategic partnerships with major hardware manufacturers, through leading retailers, through Internet partnerships and through direct sales at www.roxio.com. Roxio's parent company, Sonic Solutions (NASDAQ: SNIC; http://www.sonic.com) is the leader in digital media software and provides a broad range of software tools and applications for creative professionals, business and home users and technology partners. Sonic's products range from professional DVD authoring systems and interactive content delivery technologies that are used to produce the majority of Hollywood movies released on DVD, to the award-winning Roxio- and Sonic-branded CD and DVD creation, playback and backup applications that have become the premiere solutions for consumers and business users worldwide. Sonic's AuthorScript® is the de facto standard for CD and DVD burning and formatting and has been licensed by major software and hardware manufacturers, including Adobe, Broadcom, Microsoft, Scientific-Atlanta, Sony, and many others. Sonic Solutions is headquartered in Marin County, California.

Sonic, the Sonic logo, Sonic Solutions, Roxio, MyDVD, CineMagic, Plug & Burn, LiveShare, Roxio Easy Media Creator, and AuthorScript are trademarks or registered trademarks of Sonic Solutions or its subsidiaries in the United States and/or other countries. Dolby is a trademark of Dolby Laboratories. All other company or product names are trademarks of their respective owners and, in some cases, are used by Sonic Solutions under license. Specifications, pricing and delivery schedules are subject to change without notice.