Then I'd say this compilation is a good purchase. The sound quality varies from plain rubbish (Tracks 5,6 and 7 on CD1) to fair to really quite reasonable (there at least 5 different live venue recordings here), but it's the quality of meat on the bone that makes for the listening experience. Miles plays with a bravura that is the hallmark of a super confident bandleader making his mark on history. The first version of So What on CD2 is despite the poor sound quality quite the punchiest, most full on version I think I've ever heard - an absolute tour de force that must have the crowd on its feet by the close. And given that radio broadcasting was the primary outlet for jazz at the time, it's interesting to hear how such performances were being presented over the airwaves. All'n'all a worthwhile piece of the Miles jigsaw.
Very good edition, as others from United Archives, but there is one important mistake. CD 2, track 5: "So What" recorded at Chicago Stadium, August 7th, 1959. Editors write that there was Miles Davis Sextet. No, that day on the stage was (and was recorded) quintet - without John Coltrane.