Kevin Shirley 2003 interview: "The material from the Royal Albert Hall show [1970] was recorded on eight-track one-inch tape," Shirley elaborates. "There were the two Californian shows [from 1972] that ended up on How The West Was Won, three Madison Square Garden shows [1973] and five Earls Court shows [1975]. These were all recorded on 16-track two-inch tape. Finally there were two Knebworth shows [1979] on 24-track two-inch tape." (Shirley did not work on the 'Extras' on the DVD, which co