MP3 Compatibility for Compact Component Systems The units are capable of playing back MP3 music files burned on CD-R or CD-RW discs. A compressed file format that allows about 10 times longer recording on a single disc, the MP3 lets you enjoy a personalized compilation of songs with near-CD-quality sound, and without frequent unloading and reloading of discs. Additionally, the Compact Component Systems are compatible with MP3 Text and display track names, album titles, and artist names.