Why is there no video footage from the 2001 one?
Because he was in a contract with NBC and they stated that he would not appear on any live TV performance prior to "30th Anniv Concert" for that month. I think that was the case, not sure.
is the audio live??? sounds like studio work?
He would have performed it like in United We Stand or Royal Brunei. Not like in This Is It rehearsals beacause it was just rehearsals. It was just soundcheck if I remember right. Do you think he would have done spins in This Is It Tour?