I am trying to play my music in media player 11 and it will not play. The message comes up that windows can not find file cause it has been moved, renamed or deleted. When i download a new song and just put it in my comp it will not play saying that the file attempting to play has an extenstion(.mp3) that does not match file format. I can play music videos on you tube just fine and i can play music that has a file of .wma or .m4a but not mp3's. Can someone tell me how to fix my comp so it will play mp3s that are stored in my comp or music player.