this is a little vague, the specs on the usb plug.  i plugged in a 32g thumb drive with 1 FLAC songs on it and they played just fine.  I'm prepping for a 7 hour drive with the family so i purchased a 1 tb portable drive and its not recognized.   now i admit i don't need my whole music collection but what is the largest capacity drive i can use and how should it be formatted?
								 
				