Cleanest CD recording to test with

... hello to all...

I'm sure this has been a topic of discussion from all different perspectives, regarding well-recorded music that although it is sudio produced (as opposed to a recorded live event) is so clean and "real soundin" - you close your eyes and the artist/musicians are REALLY THERE IN FRONT OF YOU!

For me the following exhibit what I'm talking about: the 1st disc of the RED HOT CHILI PEPPERS 'STADIUM ARCADIUM', NORA JONES ' COME AWAY WITH ME', JONI MITCHELL 'BLUE', MILES DAVIS 'KIND OF BLUE' and DAVE BRUBECK 'TAKE FOUR'...for Older recording the brand/issuer seems to make a major difference.

Your suggestions/recomendations would be greatly appreciated - please help me expand my repertoire of what I term EXPERT STUDIO RECORDINGS.