See also:

Auxiliary Devices (Radio with CD/DVD and MEM)
The optional AUX input allows portable devices to be connected using the 3.5mm (1/8 in) input jack or the USB port. Portable devices are controlled by using the menu system described in Operation ...

Root Directory
The root directory of the CD-R or CD-RW is treated as a folder. If the root directory has compressed audio files, the directory displays as F1 DISC. All files contained directly under the ro ...

Overload
If the windows are repeatedly operated within a short time, the window operation is disabled for a short time. ...