Can A Usb Work In A Sony Dvd System?

1. Make sure that the USB drive is fully inserted into the USB input of the player.
2. Make sure that the file being used is one of the supported file types. A list of the supported file types is available in the operations guide.
3. Attempt to play a different file.
4. If other files play, there may be an issue with the file itself. Try removing the file from the USB drive and saving a new copy.
   
   IMPORTANT: If the file being used is corrupted or was recorded using an unsupported codec, the player will not be able to play the file.
   
5. Try using a different USB drive, format the current Flash drive with the right format (such as FAT32) then paste, or save the supported file again.
6. If other files do not play, perform a reset.
   1. Using the supplied remote control, press the Home or Menu button.
   2. Select Resetting.
   3. Select OK to reset the player back to factory settings.

If the issue is still unresolved, service may be required. Go to Product Repair.

Please check this link for reference:-

https://www.sony.com/electronics/support/articles/00012833

Thanks