SACD's, DVD-Audio, Blu-ray Audio. That's what we're
talking about here. They cost more, but they sound better and sometimes are even
in Surround Sound.
Even we have a hard time keeping track of them all.
Believe it or not, some record companies don't really tell us what is on the
bonus DVD. If we know a CD package also includes a DVD-A in high resolution
stereo or 5.1, we will include it here. If we aren't sure if a bonus DVD doesn't
have grainy live footage, it doesn't belong on this list.