I rip all my music using iTunes on my Mac, and displays fine when viewing in finder. However, when I transfer my music to a USB memory stick to play in the car and view the files on my stereo (BMW iDrive), in the main menu I get 3 extra folders (.fseventsd, .Spotlight-V100, and .Trashes). Also, when I go to an album the tracks are duplicated, although the first 'copy' of the tracks are greyed out and won't play, and have the prefix ._01, ._02 etc. The tracks that can play have the prefix 01,02 etc. If I unhide files on the Mac the extra folders (.Trashes etc) show but cannot be deleted, but the duplicate songs don't appear. If I put the USB into my PC and unhide files, the extra folders are shown and can be deleted, as can the duplicate 'hidden' tracks. Why is this happening when I rip on the Mac, and is there a way to stop it? It's very annoying having to keep putting my USB into the PC to delete these files and folders everytime before transfering to my car. Worst case scenario is there a way to get the hidden tracks to show on the Mac (simply unhiding files doesn't) so that I can delete them on the Mac rather than having to dig out my old PC? FYI everytime I put the USB into the Mac the extra folders (.Trashes etc) appear again regardless of whether I've actually transfered any files. We get the same 'issues' with my wife's Mini too. Cheers.