Det är där som eventuellt "DVD Audio" material ligger.
En DVD Audio (dvs 6 kanals högkvalitets ljud) kan ha en "DVD-Audio" del (bra ljudkvalitet) samt en DVD Video del med t.ex Dolby 5.1 ljud (som innebär sämre ljudkvalitet).
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DVD-A är mer än så, "DVD-Audio uses completely different technology to achieve its ultra-high-resolution performance. Instead of abandoning the PCM audio technology, they've improved it. DVD-Audio discs take advantage of higher sampling rates — up to 192 kHz, compared to 44.1 kHz for standard CDs. Plus, DVD-Audio discs use the Meridian Lossless Packing (MLP) system that allows discs to hold up to seven times as much information as standard PCM CDs. The result is richer, more detailed sound.
Nearly all DVD-Audio discs are engineered for surround sound with up to six discrete channels of high-definition audio, though there are some ultra-high-resolution 2-channel recordings, too. Most DVD-Audio discs also contain a compressed Dolby® Digital version of the music for backwards compatibility with standard DVD players." Vilket jag fann här: http://www.crutchfieldadvisor.com/ISEO-rgbtcspd/learningcenter/home/cd_dvdsacd.html
DVD-A är väl 5 olika format om jag inte missminner mig.
