That DVD is called Classic Albums: The Joshua Tree. If you have watched Classic Albums: The Dark Side Of The Moon, it's pretty similar. About an hour of retrospective focused on creative process and recording of the album. All the band members appear, plus Daniel Lanois and many other U2 related.
It was filmed around late 1998 or early 1999 (look Bono hair longer than Popmart Tour
) and it's quite interesting. The most enthusiastic member is The Edge, who teach several tricks of his guitars, also he tells the infamous WTSHNN "Lost Tape" demo he recorded at his house ... with drums included !
(you can notice why Larry is the drummer)
Some tracks are presented as early mixes, and sometimes you can hear just certain instruments for a song. For example, it's a pretty nice thing to discover the mix of I Still Haven't Found.
There're live shoots from different Tours (that's something quite dissapointing, unlike Pink Floyd Dark Side Of The Moon, the songs are presented in different live eras) while they should have presented footage from Joshua Tree and previous tours instead of Zoo TV Sydney, Popmart Buenos Aires, etc
but at least you can watch a little of an unknown tape among bootleg collectors from the first leg of Joshua Tree Tour (most of bootlegs are from second and third legs)
Otherwise it's a pretty nice addition, but you should be noticed that sadly some songs weren't included like One Tree Hill (sorry Axver
), Red Hill Minning Town and Trip Through Your Wires.
One of the most poingnant moments (at least for me) is when Bono talks about Mothers Of The Disappeared and Pinochet Dictatorship in Chile