First of all the good news, the cover says that this movie is presented in a standard format, formated to fit your screen, but it is in fact in a widescreen format (but, since I don't have a widescreen TV, I can't tell you whether it is anamorphic or not). Why the back cover says otherwise is a mystery to me (as the original release of this on DVD stated that it was presented in widescreen).
As for the picture quality, it looks quite good, with only the odd bit of film related dust specks/print damage, to the point that it's almost non-existent. Colours are nice and bold, and detail is very good (I'd hazard to guess that this DVD probably looks better then it did in the cinema back in 1978).
As for the extras, you get a 30 minute bio piece on Ralph Bakshi that actually feels like a cliff notes version of a much larger documentary (but it does have it's merits) and nothing else, not even the trailer for the film (which the original DVD had along with some text info) so if you're a completist like myself then you'll want to keep the original DVD as well.
As for the film itself, for all of it's short comings, it still holds up as being a very regal attempt at putting the books to film, with very little budget and no real support from the studio (to the point that the film just abruptly ends about halfway into the second book with no fanfare, due to the money running out and the studio not paying to have the film completed).
Personally, I applaud Bakshi for his efforts (because think about it, no one attempted to bring this story to film before him, and it took over 20 years and hundreds of millions of dollars for some to try to film it after him) and think the film is very good for what it is.