Federal Court Rules that Sonic Solutions Does Not Infringe Optima's Patent

Marin County, California (October 26 , 2005) - Sonic Solutions (NASDAQ: SNIC) today announced that the United States District Court for the Central District of California has granted summary judgment for Sonic, ruling that Sonic's products do not infringe Optima's patent. In its detailed Order, the Court concluded that "no reasonable fact finder could find infringement" of Optima's patent by Sonic's products. "We are pleased with the Court's findings, which reaffirm our long-standing belief that our products do not infringe the Optima patent simply as a result of their compliance with the Universal Disk Format (UDF) standard published by the Optical Storage Technology Association (OSTA)," said Paul Norris, Sonic's Senior Vice President & General Counsel. "While we assume that Optima will appeal its loss, we are gratified that the Court has so thoroughly validated our position in rejecting Optima's claims. We now plan to assess and pursue any claims we have against Optima with all appropriate vigor."

About Sonic Solutions
Sonic Solutions (NASDAQ: SNIC; http://www.sonic.com) is the leader in digital media software, providing a broad range of interoperable, platform-independent software tools and applications for creative professionals, business and home users, and technology partners. Sonic's products range from advanced DVD authoring systems and interactive content delivery technologies used to produce the majority of Hollywood DVD film releases, to the award-winning Roxio® -branded CD and DVD creation, playback and backup solutions that have become the premier choice for consumers, prosumers and business users worldwide.

Sonic products are globally available from major retailers, online at Sonic.com and Roxio.com, and are bundled with PCs, after-market drives and consumer electronic devices. Sonic's digital media creation engine is the de facto standard and has been licensed by major software and hardware manufacturers, including Adobe, Microsoft, Scientific-Atlanta, Sony, and many others. Sonic Solutions is headquartered in Marin County, California.

Forward Looking Statements
This press release contains forward-looking statements that are based upon current expectations. Such forward-looking statements include Sonic's expectations with respect to the Optima lawsuit. These forward-looking statements involve known and unknown risks, uncertainties and other factors that may cause the actual results to differ materially from any future results, performance or achievements expressed or implied by such forward-looking statements. Important factors that could cause such differences include, but are not limited to, additional court filings and rulings, inherent uncertainties related to litigation and other factors, including those discussed in Sonic's annual and quarterly reports on file with the Securities and Exchange Commission. Sonic does not undertake to update any forward looking statements.

Sonic, the Sonic logo, Sonic Solutions, MyDVD, OpenDVD, and Roxio are trademarks or registered trademarks of Sonic Solutions in the U.S. and/or other countries. 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.