Does anyone know why OS X leaves ._<file_name> files on FAT and NTFS volumes when files are copied to it? It doesn't happen to me all the time, but I've noticed it happening when I copy files to my MP3 Player (UMS device) lately and the player attempts to play them when in folder mode. Also, is there an easy way to prevent this from happening or to at least remove the files easily? I know I can manually search for them, but some sort of app or script (preferably automated) would be easier (call me lazy if you must). I'm not worried about .DS_Store or other hidden files (I do use custom icons for my PSP and MP3 player), so no worries about those.