I own the remastered Columbia Jazz Masterpieces CD which is one of the very best produced CDs in my collection. It may no longer be available new, but there are several copies available used on Amazon.
http://www.amazon.com/gp/offer-listing/B000EDKQPC/ref=sr_1_olp_5?ie=UTF8&s=music&qid=1205696047&sr=1-5
Whoever did the remastering is/was a genius, because my Jazz Masterpieces version of "Kind of Blue" is similarly fantastic. Not sure how close these are to the analog versions, but they sound really really good.
http://www.amazon.com/gp/offer-listing/B000EDKQPC/ref=sr_1_olp_5?ie=UTF8&s=music&qid=1205696047&sr=1-5
Whoever did the remastering is/was a genius, because my Jazz Masterpieces version of "Kind of Blue" is similarly fantastic. Not sure how close these are to the analog versions, but they sound really really good.