Just resuscitating this thread to share some information I just obtained about this set, in answer to a question that came up when the set first came out last year. I just spoke with Joe Tarantino, who is credited with the 2005 set's remastering, and he confirmed that this is, in fact, a new remastering, and not the 20-bit K2 remastering of the earlier Japanese box. I had suspected this after A-B'ing the new set with the 20-bit K2 versions of "Sunday At The Village Vanguard" and "Waltz For Debby". While there is much less tape hiss in the new set, the instruments have a more natural sound and greater presence than on the 20-bit K2s. Joe indicated that he thinks the remastering on the new set turned out very well, and I quite agree.