Over at Amazon.com, you can now trade in your old DVD, Blu-ray and even HD-DVD titles. There’s a catch, of course, which is that they’re not buying everything, but it’s easy enough to search through what they are buying. They’ll even pay the shipping to get your old movies there.

You’ll get Amazon.com credit for anything you trade in, which means that you can replace some of those old DVDs with Blu-ray discs you’ll want to trade in a few years from now.