What is your "evaluation cd"?


I know every time I change a cable or componet, I have a "particular" cd that I play to evaluate the change. It may not be the best sounding cd I own, but it has some merit that I want to hear reflected in EVERY cd I play. What are yours??
trich727
ABBA Gold
George Strait Greatest Hits Vol. 2
Barry White Greatest Hits
Motorhead Ace of Spades

If a high-end stereo can't be enjoyable on the "fun" music you like too, then what's the point? A stereo that sounds great only a handful of anal-retentive audiophile discs is a big bore. IMO of course...
Counting Crows Story tellers live...
or some various Dave Matthews tracks....David Grey..
Followed by some Godsmack to test the bottom end...
and annoy the neighbors...
...no particular one. Every time it changes since there is always a new music comming. The very last point of my interest is 30hzrecords CDs that is a studio of Jah Wobble.
Judy At Carnegie Hall, the Gold DCS-remastered edition. It's a double-disk set, so I can test for lots of different vocal and instrumental dynamics with various tracks.