Acer MP-320 User Manual page 21

MusePod
"Stop" button to exit the mode and return to the file list.
USBDATA Data Browsing Mode:
After entering the Backup Data mode, you can see the
files in the USBData directory, which come from the
Device connected to the USB Host. If you backup the
peripheral USB Device by USB Host function, you can
view the backup USB Data by selecting this option.
Refer to the below figure: (Note: At present it only
supports the connection to standard Mass Storage USB
devices which must use FAT or FAT16 file storage
format, otherwise the system will display "Device
Error").
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