Hi guys, Just purchased a used Navigation unit to fit to my A6. Bought all the wiring and a GPS attena, all hooked up correctly. I downloaded a 2012 map disc, and burnt it to a DVD+R. When I put the disc in, it seems to work fine, until you do a search for a street. It then comes up with loading street names, hangs on there for about 30 seconds, then comes up with 'Check navigation DVD'. Does anyone here use a burnt DVD copy of the maps? Had any problems? I just want to know whether its the DVD that causes the issue, or if its the drive itself. If its the drive, I can return it for a refund. If there is anyone local to me (Aldershot, Hampshire) who has a genuine DVD map (any year), that is willing to let me pop it in my DVD drive and see if it causes the same problem, I would be very grateful. Thanks, Chris.