Dolby TrueHD is the next-generation lossless technology developed for high-definition disc-based media. Features of Dolby TrueHD include; 100 percent lossless coding technology, up to 18 Mbps bit rate, support for up to eight full-range channels of 24-bit/96 kHz audio, and it is supported by High-Definition Media Interface (HDMI).
[Source: Dolby Technologies]
