Amazon's trade-in program is a great way to unload old DVDs or a tablet you don't need anymore, and soon you'll be able to use it to get rid of used CDs as well. The program lets you trade used items — which currently includes electronics, books, DVDs, Blu-rays, and video games — in exchange for Amazon gift cards, though you'll need to ship the items to Amazon yourself. The CD selling feature isn't available just yet, but The Next Web reports that the update should be available "very shortly" — the question is how much Amazon will be offering for the discs. In an age where digital services (including Amazon's own MP3 store) sell music for cheap, we can't imagine the retailer will be spending too much on aging discs with little resale value.