If you're curious about how much your vinyl records are worth, try using Discogs. They offer a record price guide to help you estimate the value of your vinyl collection. You'll begin with the Catalog Number on a record–find this on the album sleeve or pressed on the inner ring of the vinyl.

Playback: When you play a vinyl record, you place it on a turntable. The turntable spins the disc, and a needle on an arm tipped with either sapphire or diamond is laid onto the record and traces across the grooves. As the needle moves along the grooves, it vibrates back and forth.