I used to put the sermons on my mp3 player so I can listen to them while I work. It used to be perfect. For some reason, all of the messages I download now are not in mp3 formatt, but in mpeg formatt. These do not play on my mp3 player. Is there a way I can convert them? Also, some sermons that are mpeg, only give a screeching sound when played on my window's media player. Any suggestions?Thank you,Corey