Well this is weird - I have been playing and burning several disks trying to come up with the root of the problem... It appears to be WMA - I burned a disk with just WMA files and a disk with just MP3 files - both from Musicmatch... The WMA will not play at all and the MP3 disk is just fine - it works great... So something is wrong with my radio not playing WMA or my WMA files... It does recognize them - but then it locks up.... May have to try some different burning software.....