Because they are, for starters, compressed. Maybe a new labeling requirement should be whether they are or not compressed. Often, if you compare an issued Cd againist the same music on an SACD, the difference will leap at you.
Lastly, some engineer's do it better, with perhaps Steve Hoffman being the tops. He is doing Nate Cole for SACD, worth checking out.
Lastly, some engineer's do it better, with perhaps Steve Hoffman being the tops. He is doing Nate Cole for SACD, worth checking out.