Definition: Dolby Digital Plus is a high definition digital-based surround sound format that supports up to 8-channels of surround decoding, but also contains a standard Dolby Digital 5.1 bitstream that is compatible with standard Dolby Digital-equipped receivers. Dolby Digital Plus is one of the several audio formats designed and employed by Blu-ray Disc and HD-DVD technologies.Dolby Digital Plus is compatible with the audio portion of the HDMI interface interface. For more technical details, go to the official Dolby Digital Plus page.
Dolby Digital Plus
By Robert Silva, About.com Guide
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