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To: John Rieman who wrote (29791)2/22/1998 9:01:00 AM
From: CPAMarty  Read Replies (3) | Respond to of 50808
 
Sony, Philips Super Audio CD Licensing Set
- -February 23, 1998
twice.virtualmarketing.com
By Joseph Palenchar

Philips and Sony are looking for other player and music makers to join them in launching their Super Audio CD (SACD).

They have invited all CD licensees to meet on March 19 in Tokyo to hear about their licensing plans for the DVD-based multichannel music format. They said they would release version 0.9 of the SACD specifications in late March.

The SACD is a one-sided, dual-layer disc, A high-density layer would hold both six-channel and two-channel versions of the program, both encoded with Sony's Direct Stream Digital (DSD) technology. A version playable on existing CD players would be on the other layer.

The licensing plan precludes DSD from being used as an option on DVD music discs that conform to a proposed spec drafted by the DVD consortium's working group-four. The group proposed a flexible standard whose discs, at a minimum, would contain an uncompressed linear-PCM program in either two-channel or multichannel form. But any optional multichannel format, including DSD, would be allowed to coexist on the disc alongside a two-channel PCM program.

"The license is for the SACD as a whole," said Wally Heijnemans, a director of standards R&D in Philips' systems, standards and licensing group. "We won't separately license DSD."

There is apparently nothing to prevent the making of players that would handle both SACDs and music DVDs.