i have a "remastering" of a 1957 recording, "a lovely afternoon" that sounds to my ears like it came off of a somewhat worn LP specimen copy. a disappointment considering that the original stereo master tape still exists somewhere [MCA studios?] in SoCal. OTOH, recent long-belated remasterings/reissues of selections from the stereo mix of the Phil Spector Christmas Album, are sonic revelations compared to the original mono release.