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Source: WEBRip
Video compression mode: AVI
Size Mb: 381
Total Run Time mn. 91:14

This is a terrific documentary and I endorse everything the reviewers below say. My copy (purchased from Amazon) has a different cover and is unversally encoded (ie it is not Region 1 only).
For me the highlight was Lonnie Pickford's virtuoso, but utterly faithful, take on Robert Johnson's Come On In My Kitchen and If I Had Possession Over Judgment Day. Eerie though it is to listen to a recording of Johnson's original item, it does require some imagination to get through the poor recording quality - it is definitely rewarding to hear (and see) it played freshly and crisply in front of your very eyes. Lonnie - recently deceased at a very early age - definitely is a keeper. Note though that getting hold of any of his music is damn hard.