Sony MHC-V73D Help Manual page 159

Help Guide
Home Audio System
MHC-V73D
Files cannot be played back.
The data is not stored in the supported format.
Make sure you have selected the correct MEDIA MODE setting before playback.
USB devices formatted with file systems other than FAT16 or FAT32 are unsupported.
This system supports FAT16 and FAT32, but some USB devices may not support all of these FAT. For details, refer to
the operating instructions of each USB device or contact the manufacturer.
If you use a partitioned USB device, only files on the first partition can be played back.
5-014-121-11(1) Copyright 2020 Sony Corporation
159