As time marches on, technological advancements grow. With that, we, as a society, must let go of certain things in order to progress. The CD drive was one of the many things that was dropped in recent upgrades, leaving mountains of DVDs and CDs with no way of getting played. If you're not ready to get rid of your circular friends, there's still a way: by plugging an external USB optical drive into one of your machine’s USB ports. You can pick up one of them from Amazon for as little as $15.