Need more info here, error messages, when did this start, have you tried a different CD, did you try burning from a different program? WMP is nice to use when you are trying to stick MP3 files on a regular CD for use with devices that don't run MP3 files. The burners listed above are OK to burn disks but won't convert MP3 files to CD format. Which is what I'm guessing the OP is trying to do.
Hello,cd wont burn,,,win 7 ultimate,,,using windows media player
hey man go for nero latest burner and check it out