My observations based on the track Heroin.
EDITING
Move Back is the least edited with extra sound at the start and tuning after the hand-claps at the end.
45th misses out the tuning at the end and a brief bit of sound at the start.
1966 is the most edited without the 'heroin' intro.
SPEED
Move Back and 45th run at the more or less the same speed.
1966 runs slower.
SOUND
Move Back and 45th sound very much the same. Looks like something was done to the Move Back signal. Maybe a little noise reduction at the top end.
1966 has been transferred at a lower level.
1966 is brighter suggesting that it ha been processed to give it more bite.
I think Move Back and 45th use the same source. I cannot imagine UMG actually copying a bootleg CD and I suspect the spectral analysis shows otherwise.
I can't hear any 'diginoise' in Heroin nor see anything obvious in the spectral analysis. At what time does it occur? I can hear a few tape glitches towards the end of both versions of Move Back and 45th. I haven't listened to 1966 version all the way to the end.
OCD Datsun xxx
Spectral:
Lengths:
