Occupying just a single unit of Rackspace, the CDMP-1500 boasts playback for CDs and MP3s, along with a USB input for connection of USB storage devices, making it incredibly easy to play all your favorite MP3 and WAV files directly from a flash drive or memory stick. Slot-in CD/Mp3 player. Perform with CD, MP3, USB, software, and iPod. Mixdeck is a complete system for every DJ who blends different kinds of music sources. Whether your music is on CDs, MP3 CDs, USB flash drives, iPod, your computer, or even other analog players, you can mix and perform with it all using Mixdeck..