I have an AT&T Galaxy S2 with the 4.04 OS upgrade; it is, as far as I can tell, completely current. I have the stock Music Player app, Winamp and iHeartRadio installed. My music files (roughly 17gig on a 32gig micro SD card) randomly duplicate. One album may be fine, the next two are duplicated inside the folder with the duplicates being unplayable, the next three albums might be okay and then six more may have duplicates. Pictures do it as well, only they all completely duplicate. I just deleted out all the blank dups three weeks ago, and today I saw every last folder has doubled from blank duplicates. When I upgraded to the 32gig card, I had cleaned out all of the dups and used nothing but the native Music player. I have no idea what's going on. Any help would be greatly appreciated.