Well, I'm not sure if you can download it from the discs or not but I have the CD+G stuff from BTM on a VHS tape anyways.
All it really is, is the album playing in the background and the lyrics that are being sung at the time display in the screen with pictures of the band members etc. on the sides of the screen that are free of the printed words if that's of any help.
I know Lou Reed's "New York" album from 1989 had CD+G stuff on it too as well as the WB copies of Bonnie Raitt's "Nine lives" & "Green light" CD's (though I doubt the new Rhino reissues of those albums have the CD+G stuff on them, who knows though?!
John