Why DVD (and game) piracy is so popular

This is something that's been bugging me a lot since I joined lovefilm and started really watching a lot of rented DVDs, but explained in a really nice format:

Why piracy works

And there's a very similar situation with PC games, only even worse:

You maniacs!

The DVD one in particular is annoying me because I pay £15 a month to rent DVDs, but they get to me slower and in a less user-friendly form than if I just torrented the damn things. And they repeatedly shout at me about how piracy is theft before every film. Grrrrrr.

I heard about a DVD that someone rented recently which started with a screen saying "Thanks for supporting the industry" and then went right into the film. Must have been an indie flick.

/rant