I guess that I was assuming that if the movie was in a .bin format and less than 800mb that it would be a CD image & typically something of that size would be a VCD or SVCD movie.
If you haven't actually got the thing yet it's hard to take this very much further without a lot of speculation that may just confuse the situation, which is what I might have already done.
When you get the DVD and you've got a .bin or .iso file then these can be mounted on a virtual drive like Daemon Tools. You can then look at the contents with Explorer. At that point you tell us what you've got & we can take it from there.
As already mentioned you could also use Winrar to open & examine an ISO image.