I'm kinda tired so I can't give an in-depth review, but I enjoyed these too. I thought the first volume was slightly better.
They're available in the U.S. and U.K. - even the UK versions are NTSC for some reason. Probably hard to find in stores, but can be ordered easy enough.
They are basically interviews with music critics who trace Queen music chronologically, and with clips from videos and concerts. The 2nd volume uses clips from Budapest '86 a lot as I recall. You probably won't learn anything new, as a fan, but if you enjoy hearing people talk about Queen as I do, they are enjoyable and well-made.
I have a bunch of this type of unathorized documentary DVDs listed on my site: http://queenguy.50webs.com/dvd.htm#docs
though my info isn't very consistent, I'd be happy to answer questions :-P