I may be completely wrong here, but I will give this a shot. iTunes uses Gracenote to tag the songs. If the cd you are trying to burn contains various songs by various artist gracenote does not recognize those songs. I know when I burn a mixed cd and then try to import those songs into a computer the computer does not recognize the songs either and I have to tag each song prior to importing. Now if this is happening when you try to burn a whole album by the same artist, then my theory is all wrong..