The best of both worlds. Let’s face it. Just about everyone has CDs. Whether you gig with a CD library or someone brings you a CD to play, it helps to be able to play them. If you’re ready to transition to performing with MP3 files or even if you already do, the MP103USB USB and MP3 CD player lets you have the best of both worlds in one extremely convenient and powerful place. For DJs whose libraries live on their computer, MP103USB is a perfect solution.