Sony XAV-AX8100 Help Manual page 96

Help Guide
In-Car Receiver
XAV-AX8100/XAV-AX8150
Audio files cannot be played.
USB devices formatted with file systems other than FAT12, FAT16, FAT32 or exFAT are unsupported.*
*
This unit supports FAT12, FAT16, FAT32 and exFAT, but some USB device may not support all of these. For details, refer to the operating
instructions of each USB device or contact the manufacturer.
5-025-710-11(2) Copyright 2021 Sony Corporation
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