Listening to Mozarts' Piano Concerto #13 right now. Howard Shelley preforming. Excellent recording. As are most of the Chandos CD's in that set.
Here

On the rock and roll side.

Porcupine Tree: The best band I've found in years. Outstanding engineering, mixing and recording. A refreshing find.
Deadwing
In Abstensia

As for great sounding DVD's I was pleasantly surprised to find Rush's R-30 very Good.

R-30

I wish I could find more threads like this. It is so disappointing these days to find that the vast majority of music out there jsut sucks as far as the quality of the recorings /engineering go. Suffice it to say that ever since upgrading to a "real" audio system, 80% of my collection just doen't seem to cut it anymore. I'm now on a never ending quest for quality recordings. And in todays world of overcompressed MP3 dumbed down Ipod crap it's getting harder and harder.

Keep posting the good ones!