Because of an exclusive contract to publish this movie on a now dead format (CED), the contracts for the individual artists are missing. Because you can't renegotiate a contract without the original to amend, no one can touch this. Its currently owned by its original producer, Miles Copeland (founder of IRS records), and he has the film of THREE songs from each band in storage, but because of the legal land lock he cannot release it. If he does some day, we can look forward to a 6 hour 2 DVD special edition.
Pretty sad to say the very least. We can only hope one day (soon) that the original contracts will be found as this will make a MAJOR DVD release!! Oh, human error!!