http://www.vudu.com/disc_to_digital.html
Basically, it's the movie version of what e-book publishers should have done 5 years ago. If you own a DVD or Bluray of a movie, you can pay a couple bucks to get (permanent) online access to that movie.
I'm not going to run out and do it for every DVD I own, but it's cool that there's at least an option coming out like this.