my cousin did this before he downloaded music and tried burn a cd and he did it all wrong. he tried to burn a cd full of m4a songs and wma songs..dunno how much you know about downloading music.... but ima say it anyways just some very basic burning knowledge for beginners....
always make sure your burning mp3 only..and also remember your cd can only hold 80 minuts of music if you go over that even 1 extra second it wont burn right......