As usual I am confused by this discussion. As far as I can see cdrecord, k3b and xcdroast can effectively use only CD-R disks. They can not format CD-RW disks as Windows software can do allowing you to use the CD just like you would use a hard drive in reading and writing to it. So why would anyone use the more expensive CD-RW disks on Linux systems?
Does anyone have a different take on this matter?