The first half of this CD is the complete performance remastered from a first generation VHS stereo recording. The quality is outstanding. The second half is a remastered version of the previously available recordings. Dropouts, distortions and miss-tracking have been corrected. The two versions have different acoustic characteristics providing a rare opportunity to hear the same live performance from two different acoustic points of view. In The second half, the edited segments were not resterd and, in fact, the Mike and Tony improvisation segment had to be removed to fit the time constraints of a single CD. Overall, an excellent recording of four impressive musicians.