I downloaded Switch in order to convert some wma files into mp3s that came from my classmate's voice recorder. The software will not open the wma files although they are said to be supported. I've checked the software's preferences, in addition to the files themselves, and can find nothing suspect in either. There is no reason why the files should be protected since they were downloaded directly from the original source. Any ideas? I'm using OS 10.3.9 Panther on a G3 iBook. Thanks.