It was shot using poor equipment planning, Zeppelin's set was shot with one 16mm camera, as were other bands. I don't know why they intended to make this into a documentary, poor film set-up inter cut with a bunch of audience scenes and/or footage of the band that isn't even synchronized isn't going to make a very good documentary, this is why they haven't made a release of the festival on DVD. Audio is another story, an audio release would be great, as there are I believe complete soundboards of every band.