If you're looking to buy CDs online and build your collection, there are, thankfully, a lot of great places to buy them both ...

Break out the bike and pedal to the Record Exchange, where thousands of used CDs, tapes, records, and video games range from 50 cents on up.

Between this and record companies forcing retailers' hands by ending acceptance of opened CDs as returns, the used CD market exploded. Despite this being fully legal, the record labels — and ...