I also posted this thread on another forum, and this is the first reply:
"IIRC, there are two versions. I own the latest one, which claims to be 'remastered'. I dont know if both versions sound the same. If you are familar with the Sony Legacy editions of Duke's albums ('Blues in Orbit', "Masterpieces', etc). that's the sound what you are getting here. Except for the first tracks on disc one. Those are a disgrace. Horrible sound smothered in noise reduction. I dont think Sony bothered to remaster those for this box, they just took whatever was on those awful sounding late 80's /early 90's transfers and pasted them in the box."
Any comments, especially regarding the noise reduction?