first off, i didn't back them up, and i didn't mess with them. i doubt the files themselves are the problems. it's something within the files required to PLAY them that is the problem. files i didn't even touch have acted wierd, and it's gone to other things. so, backing up seems unneccissary. second, i didn't REALIZE i'd be messinge with them! they were just simple file converters! i have no idea that his would happen! (Hah. i guess i'm a lazzy bastard. i don't have another drive to backup on anyway, so it's irrelivant.) second, changing the extention doesn't work. it just causes problems whe