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To: John Rieman who wrote (26083)	12/3/1997 9:34:00 PM
From: BillyG	Respond to of 50808

More on Sony Super Audio CD...................... japanbiztech.com Sony, Philips to Adopt Digital Watermark for Disk December 2, 1997 (TOKYO) -- Sony Corp. and Philips Electronics NV of the Netherlands plan to use Sony's digital watermark copyright protection technology in Super Audio CD, a next-generation audio disk, a source close to Sony said. Super Audio CD was developed jointly by the two electronic equipment makers. Record industries in Japan, the United States and Europe hope to adopt standards for the next-generation audio disks that protect copyrights. Super Audio CD will become the first disk to respond to the industry's demand. Physical Watermark, the digital watermark technology, is designed to prevent piracy and replicated disks. With the new technology, digital watermark information is embedded in the disk, making physical use of a molding of pits which records digital data. In this case, content data are not affected. An audio disk player tries to detect the digital watermark information to judge whether or not to replay the disk. The player will not replay replicated disk, since the digital watermark information is lost on the replicated disk. In addition, actual voice content data are scrambled, and key information to unscramble the data are stored in a region where the information cannot be replicated. Replicated contents thus cannot be played because pirates cannot replicate the key information even if they succeed in obtaining content data. Super Audio CD is a standard for a next-generation audio disk that will rival DVD-Audio, to be finalized by the DVD Forum by next spring. A proposal for a DVD-Audio standard made by the forum was submitted to the record industry. However, a concrete method for protecting copyrights is not yet fixed. The DVD Forum will consult with the Copy Protection Technical Working Group, a group examining the issue of copyrights. It established by five industry groups in the United States and other groups that will determine a copyright protection method. The Super Audio CD standard will be announced by the end of the year. Sony aims to commercialize the player in the spring of 1999. (Nikkei Multimedia)