Yamaha CRW70 Spyder 12x8x24 External USB 2.0 CD-RW Drive and MP3 Player 12x write speed, 8x rewrite speed, 24x read speed A built-in MP3 decoder, plays back MP3 songs (up to 300 titles per disk) just like a regular CD player SafeBurn buffer management system eliminates buffer underruns and lets you multitask Store data and graphics to free up limited, expensive hard disk space Plug and Play installation on any PC or Macintosh with a USB 1.1 or USB 2.0 interface port