uv code swops and digital films

[r33ceh]

has anyone heard of this or joined any sites?
I think it would be something that would work well on this site. maybe one of the admin would consider setting up a thread.
I've never tried it myself but would be keen on partaking. from sony website:
"When you b*y a Sony Pictures DVD or Blu-ray with UltraViolet, you can use the included redemption code to add the movie to your UltraViolet Digital Collection! There is already a variety of great titles available today, with more coming all the time!"
so basically you watch the original dvd, then trade your code with another member, and they give you one in exchange.

so if hasn't already been done, anyone interested????

ps I think other film companies do it as well