Dolby Digital Plus is the next-generation audio technology for all
high-definition programming and media. Built on Dolby Digital,
the multichannel audio standard for DVD and HD broadcasts worldwide, Dolby
Digital Plus was designed for the delivery formats of the future, but remains
fully compatible with all current A/V receivers.
[Source:
Dolby Technologies]
Dolby Digital Plus supports two important new digital connections:
High-Definition Media Interface (HDMI) and
IEEE 1394 (FireWire). Other features of Dolby Digital Plus include:
- Multichannel sound with discrete channel output.
- Channel and program extensions can carry multichannel audio programs of
up to 7.1 channels.
- Supports data rates as high as 6 Mbps.
- Bit rate performance of at least 3 Mbps on HD DVD and up to 4.7 Mbps on
Blu-ray Disc.
- Supported by HDMI, the new single-cable digital connection for
high-definition audio and video.