MP3-CD playback means MP3 plays like a normal audio CD.
MP3 stands for "MPEG 1 Audio layer-3".MP3 is a revolutionary compression technology by which large digital music files can be made up to 10 times smaller without radically degrading their audio quality. MP3 has become the standard audio compression format used on the Internet, allowing quick and easy audio file transfer.
Compatible with CD-Recordable and CD-ReWritable
CD-ReWritable Compatible means that your audio set can play both CD-Recordable (CD-R) and CD-ReWritable (CD-RW) discs. CD-R discs are recordable once and can be played on any audio CD player while CD-RW discs can be recorded and re-written multiple times and can only be played back on compatible audio CD players. The laser pick-up and CD decoder circuitry of CD-RW compatible players are specially designed to read the special audio CD-RW phase-change recording layer, ensuring you can always play your home-recorded discs on your audio CD system.