Playback may stop when playing songs on a USB hard disk.

If the USB hard disk is used near a loud speaker in a club or in a location subject to vibration, the data read operation may not be possible due to the influence of the vibration and sound pressure.

In general, measures such as vibration damping and sound insulation are effective, but if you are using the hard disk in such an environment, please contact the support for the hard disk you are using for information on how to install the hard disk.