USB Port
 

Just bought a new Golf and it came with the USB port on the radio. My dealer told me that I could just plug in a USB drive loaded with music and it would play the songs. However, when I tried this I got a message saying there was an error reading the files. Does anyone know how the feature is supposed to work or if I have to do anything to the drive so the songs can be read? Any help would be greatly appreciated.

Cheers