I converted my itunes music to mp3. Then formatted on my mac a 16gb sdhc cars to ms fat32. I pulled the foldeds over with the hierarcy intact. All works well but some foldes show 2 of the same music file. One wont play and the other will. The one that does not play stars with a _ as the first character . The folders in finder only show the one file. I tried to open sdcard in windows to try and delete the bad files but it does not see them either. I guess it works but just annoying. Anyone know how to fix?