In addition to all other comments, keep in mind any CD-R/CD-RW will not work (unreadable) in regular CD drives until you make them readable via the CD-RW drive. I use my CD-RW for a backup system but this rewritable CD can only be read by the CD-RW drive. Once you have committed to make a CD compatible with all other CD drives, you can no longer change the contents on that CD [at least on the drives I have worked with].