Butch,
I could not confirm that the DVD is "anamorphic widescreen" since it is officially not indicated anywhere. I checked for you at AMG, Band's site, a few other places where the album is listed, however, at amazon one of the reviewer has mentioned that it is "widescreen" if that is of any help. From what I have read so far this looks like a superb DVD/album to have for any Fleetwood Mac fan.
I am glad I did this search since I am now convinced that I must get one for myself.
PS:I assumed your post was addressed to me, is that right? :)