Can mp3 or mp4 files already on a computer be burned onto a CD or DVD?
nero roxio is good , you could just drag the files to the blank cd it willl prep and then say you have files ready to be written {this method is not to good unless you are only going to use the cd in another comp , laptop } a mp3 burn this way will not work ( this has happened to me ) use nero burning rom in nero ( you can easily get confused ) or roxio creator classic
