Mel

if it says you have an audio cd in the drive - it means that particular cd is formatted already and can't be written to.

Getting a rewritable thumb/portable USB drive will be easier for you. Just plug it in and drag files to it. When you are done with a project, just drag the "old" files (that are on the usb drive) to the trash. Then you can reuse it for new projects

good luck! jean