The DVD's state on the packaging that there is an extra 30 minutes more than the films. Just another marketing ploy by the record companies of course. How many times have you bought CD's already having the bulk of material on vinyl because there are extra previously unissued tracks? I've done this and then discovered that I couldn't dispose of my vinyl (which I would like to do for reasons of space and not sound reproduction) because one track which I particulary enjoyed on vinyl was not included on the CD which contained an extra 9 tracks.

Seems like the Clint Eastwood film includes Ellington, Oscar Peterson and Art Tatum - nothing wrong with the music of course but is it blues?

If you want to read revues of all the films you should go to the current issue of Juke Blues magazine.