What an interesting find. The Australian Doors. Doing a Zeppelin song. 

BTW Porkchopbob. I got a private Email from an ABB fan and Rook Goldflies was in Gregg's band for a tour or two just after Betts, Hall, Leavell broke up. I had forgotten that Butch Trucks quit before the band folded. Butchie was replaced by Matt Apts. I remember seeing Betts, Hall, Leavell after Butch quit but don't have a clear memory of the new drummer being Matt Apts. 

Betts, Hall, Leavell, Trucks couldn't get a record deal and neither could Gregg. Arista had the ABB locked out. They owed Arista one more album but refused to do another if Clive Davis was going to choose the producer who in turn would push the band to modernize and be commercial and try to score some hit singles. That was already tried on Brothers Of The Road and to a lesser extent Reach For The Sky and the band didn't like it and refused to continue down that road.