Dolby Laboratories Debuts Dolby TrueHD, ''Picture-Perfect'' Sound for Next-Generation High-Definition Discs, at CEDIA Expo 2005

INDIANAPOLIS, Sep 08, 2005 (BUSINESS WIRE) -- Dolby Laboratories (NYSE: DLB) today announced its latest advancement in lossless audio technology, Dolby TrueHD, which is designed to complement the recent developments in high-definition optical disc formats. With Dolby TrueHD, home theater viewers will experience audio performance equal to the highest-resolution studio masters currently available.

The company is demonstrating Dolby TrueHD along with Dolby Digital Plus at its CEDIA Expo exhibit booth (#538). These two Dolby technologies are essential elements of next-generation high-definition entertainment, having been adopted for use in both the HD DVD and Blu-ray Disc formats. Dolby TrueHD and Dolby Digital Plus technologies are mandatory audio codecs in the HD DVD format as well as optional features in the Blu-ray Disc format. Dolby Digital is mandatory in both formats.

"The high-definition disc formats being discussed today will provide viewers with new levels of image quality," said Craig Eggers, Dolby Senior Manager, Consumer Electronics Technology Marketing. "With Dolby TrueHD, those same viewers can experience multichannel surround sound that fully complements the detail and fidelity of the high-definition picture."

Dolby TrueHD builds upon the proven foundation of MLP Lossless by incorporating higher bit rates, additional channels, enhanced stereo mix support, and extensive metadata functionality, including dynamic range control and dialogue normalization. Enabling recordings that are bit-for-bit identical to studio masters, MLP Lossless was first introduced in DVD-Audio, and has since become the leading multichannel lossless audio format. In addition, Dolby TrueHD provides support for all of the new speaker locations designated by the Society of Motion Picture and Television Engineers (SMPTE) for digital cinema applications (RP 226).

"When coupled with high-definition video, Dolby TrueHD offers an exceptional home theater experience that enables you to enjoy sound as stunning as the picture," said Ed Schummer, Senior Vice President and General Manager of the Consumer Division, Dolby Laboratories. "When a playback system displays the Dolby TrueHD logo, viewers are assured they are hearing the highest-quality audio performance possible -- as if they are hearing the studio master itself."

About Dolby Laboratories
Dolby Laboratories (NYSE: DLB) develops and delivers products and technologies that make the entertainment experience more realistic and immersive. For four decades Dolby has been at the forefront of defining high-quality audio and surround sound in cinema, broadcast, home audio systems, cars, DVDs, headphones, games, televisions, and personal computers. Based in San Francisco with European headquarters in England, the company has entertainment industry liaison offices in New York and Los Angeles, and licensing liaison offices in London, Shanghai, Beijing, Hong Kong, and Tokyo.

For more information about Dolby Laboratories or Dolby technologies, please visitwww.dolby.com

Certain statements in this press release, including statements regarding the performance and capabilities of Dolby TrueHD, MLP Lossless, and Dolby Digital Plus and their applications with HD formats generally, and the Blu-ray Disc and HD DVD formats in particular; the anticipated or potential benefits that consumers and others may derive from these technologies; the anticipated market acceptance of these technologies; and potential future uses for these technologies are "forward-looking statements" that are subject to risks and uncertainties. These risks and uncertainties, which could cause the forward-looking statements to differ materially from anticipated results, include, without limitation, risks associated with building market acceptance of and demand for Dolby TrueHD, MLP Lossless, and Dolby Digital Plus technologies; risks associated with building market acceptance for HD formats in general; competition in the market for high-quality audio technologies; rapid changes in technical requirements for high-definition technologies and packaged media; risks associated with introducing new technologies to consumers; risks associated with having Dolby technologies adopted as industry standards; and other risks detailed in Dolby's Securities and Exchange Commission filings and reports, including its quarterly report on Form 10-Q for its fiscal quarter ended July 1, 2005.

Dolby disclaims any obligation to update information contained in these forward-looking statements whether as a result of new information, future events, or otherwise.