What are HD Lossless Audio Formats?
These are two new audio formats which are supported by 1.3 HDMI cables, these are Dolby TrueHD and DTS-HD Master Audio. Both of these formats have more information and better sound overall then previous Dolby and DTS formats, additionally they are only available via the large bandwidth supplied by HDMI cables and are not available via traditional digital coaxial or toslink cables.