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Sonic DVD Creator
The new version of Sonic's DVD Creator, scheduled for a late October release, will be the first to support CPPM and watermarking for audio content.

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Sonic Sides with DVD-Audio 1.2
Spec brings copy protection, watermarking to producers working in DVD

by David Nagel
Executive Producer
[email protected]

Sonic Solutions today announced support for the DVD-Audio specification version 1.2. DVD-Audio is a new audio format that builds on the DVD-Video format, incorporating sampling rates of 96 kHz and 192 kHz with up to 24 bits of information per sample (compared to the CD standard of 44.1 kHz and 16 bits per sample). With DVD-Audio, full-resolution audio can be presented in stereo or in any channel combination up to six-channel surround. It also allows audio programs to be accessed through and alongside visual material, such as menus and text.

The standard incorporates a coding scheme called Meridian Lossless Packing (MLP), which makes it possible to use full-resolution, 24-bit, 96 kHz audio on all six channels of a surround presentation even when the bandwidth of such a presentation would normally exceed that available in standard DVD media.

Version 1.2 of the specification also defines a new copy protection method called CPPM (Copy Protection for Prerecorded Media), which defines a renewable cryptographic method for protecting entertainment content when recorded on physical media. Sonic will also integrate Verance watermarking technology as an option with new SonicStudio HD for secure content delivery in DVD media.

According to Sonic, watermarking DVD-Audio content will allow producers to mark and their content invisibly for later identification. The new release of Sonic's DVD Creator AV that supports CPPM and watermarking is scheduled to ship at the end of October. The CPPM technology will be a standard feature within DVD Creator AV, and the Verance watermarking will be available as an option.

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