Most SACDs and DVD-As in my experience are surround sound or 5.1 channels. Some of them are only 5 channels or 4 channels (no sub/LFE track and possibly no center speaker track). Some are only stereo.

Some SACDs have both the regular cd tracks and the SACD tracks. Some (mostly older ones) have only the SACD tracks.

Some sacds have regular stereo cd tracks, high rez stereo tracks and surround sound tracks all on one disc.

Some have extra videos or pictures - expecially the DVD-As.


M22s, QS4s, M2 center, Hsu stf-1.