The Single CD and the Six-Disc CD Radio will play MP3/WMA files that were recorded on a CD–R or CD–RW disc. The HDD Radio can also play MP3/WMA files recorded on DVD+/-R discs or stored on a USB storage device. Some USB storage devices may not be supported.

The files can be recorded with the following fixed bit rates: 32 kbps, 40 kbps, 56 kbps, 64 kbps, 80 kbps, 96 kbps, 112 kbps, 128 kbps, 160 kbps, 192 kbps, 224 kbps, 256 kbps, and 320 kbps or a variable bit rate. Song title, artist name, and album can display when files are recorded using ID3 tags version 1 and 2.