karamac

I'm hoping someone here can help me because I'm going out of my mind... When I transfter tracks from my computer to my minidisc the songs transfer but when I play them back there is no sound! The track looks like it is playing (according to the time going by..) but I can not hear anything. I can only hear tracks I've recorded previously before I had this problem. Has anyone else had this problem? Does anyone know what the problem might be??? Thanks a lot.