Well they don't seem to specify it, but is there any chance he is selling second hand DVD's?

If they are copies they have certainly taken a lot of trouble to make the site appear legitimate...2257 notices, shipping restrictions, return policies, etc. Unlike many websites I have seen pirating though they do have a contact form on the site.

I think best of all, if this does prove to be a copyright violator, I like the copyright notices they have posted on the site.