rageagainstmachine, on 17 January 2013 - 18:40, said:
they are standard 4GB cards, not HC. i believe i need to have it fomratted in FAT32 for it to work in my audi a4 B8. concert stereo. hmmm, bought them from amazon, two actually. both have the same issue. woudlnt be a driver issue would it?
If it is a driver issue, check windows update. There may be something to download. Check device manager too. Also try rebooting. Can you try them on a different PC? Different OS (OS X, Linux,etc)?