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Thursday, October 24, 2002
DVD-AR (Recordable DVD-Audio) specifications!


DVD-AR, recordable DVD-Audio, is on its way, the details of which have been exclusively revealed to High Fidelity Review by DVD Forum WG-4 chairman Bike H. Suzuki (JVC).

The DVD-AR format enables users to record, edit and replay a wide variety of audio content on writable discs. The main purpose of the format is to realise high-quality recording using Linear PCM and/or Packed PCM (using MLP), together with ‘long-time’ recording using any one of six lossy CODECs. In addition to audio contents, DVD-AR allows the user to store still pictures and text, just like DVD-Audio.

DVD-Audio Recording Specifications v0.9 were completed and approved by the Forum’s Steering Committee in late July. The v0.9 status of the document means that some small issues remain, but Bike explained the he hoped v1.0 would become a reality in early 2003, especially as the technical details of DVD-AR have already been finalised.

Bike H. Suzuki enthused: “Now, we finally have DVD-Audio Recording specifications, which is surely a big enhancement to both DVD-Audio or DVD families.”

One significant issue remaining is that of copy-protection, however 4C, who developed the Content Protection for Pre-recorded Media (CPPM) scheme currently used for DVD-Audio are already busy creating a compatible system for DVD-AR and Bike feels that the IEEE-1394 interface (Firewire) will make the transmission of copy-protected digital data to and from recorder and players possible. This endorsement of IEEE-1394 comes on top of Texas Instruments’ announcement last week of their integrated cross-platform iceLynx Micro high-resolution interface, which uses IEEE-1394 technology at its core and the Forum’s own Firewire recommendations.

The DVD-Audio Recording Specifications v0.9 document will be published in mid October 2002, but a draft based upon an earlier version was made available to High Fidelity Review. We were assured that the version obtained and v0.9 are essentially identical and that all technical criteria are unchanged.

For more information click upon the 'Source' link!


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