I have tried loggin in as root and burning a CD, but the same problem persists. Also, when I sudo k3b &, I get the message that growisofs cannot be found, but it is right there in /usr/bin along with all of the other ones. The permissions and ownership of cdrecord (actually a link to wodim) are: lrwxrwxrwx 1 root root 5 2007-06-21 17:50 /usr/bin/cdrecord -> wodim I don't know how to make cdrecord an SUID root program, unless it means to change the ownership with chown. I have never changed any of these ownerships. Previous versions of k3b warned that some permissions and/or ownerships of some programs be changed, but way back in Fedora3 or 4, I tried that and the result was that burning became impossible. Since then, I have always ignored those messages and burning worked like a charm. Now, with the change to wodim instead of cdrecord, these messages no longer appear, but since recently, burning is no longer possible. A whole stack of blank CDs have been ruined: writing begins and then the session is closed, but nothing is written.