What audio formats are available on HD DVD?
Linear PCM (LPCM): this format offers up to 8 channels of uncompressed audio.Dolby Digital (DD):this format (formerly known as AC3) is currently used on existing DVDs and offers up to 5.1 channel digital surround sound.Dolby Digital Plus (DD+): an extension of DD, this format offers increased bitrates and 7.1 channel surround sound.Dolby TrueHD: this format offers lossless audio encoding of up to 8 discrete channels.DTS Digital Surround: this format, currently used for some existing DVDs, offers 5.1-channel surround sound at an increased bitrate to Dolby Digital (DD).DTS-HD: an extension of DTS, this format offers increased bitrates and up to 8 discrete channels.Please note: although HD DVD supports all the above formats, it is dependent on the content manufacturer to decide which are included on the release of a particular disc and you may require an additional hardware decoder to access some formats.
