budget rock documentaries

any of yall seen any of these DVDs? scoopable only because they usually have some cool concert or extened live footage as "bonus" materials...but they are all the same..an hour and a half of dudes, whom you have NEVER heard of before, sitting in front of a monitor with pro-tools on it(I guess to give the atmosphere a "behind the scenes" vibe), clips of said band, and some douchetard with a gross shredder guitar, showing you how the band's memorable riffs are played (a lot of the time the riffs are play wrongly)...there seems to be a shit ton if these things...but anyway, the Slade one is ace, just because of the bonus live footage...watched a stones one the other night and turned it off half way through(the bonus footage was just the sullivan performances), Moody Blues one sucked as well..any others worth risking 8 to 10 bucks on?