The only site that I know of that allows you to burn the video onto DVD is the AEBN theatres.

There are DVD sites out there. I don't quite know how well they do, but I'm sure they do well.
I can't think of them off hand. Shoot.... Let me think and I'll get back to you!

However, there is a DVD Rental site where you actually rent the DVDs like Netflix. It's BoyToyDVD. We do very well promoting them as well as a studio with them. They have an aff program at DVDDollars.com