seems as your problem is worth a separate bug (separing issues gives good karma ;-) i had the same problem you find the solution-for-me in bug 25380 ;-)
-- k3b and cdrecord priviliges problems https://launchpad.net/bugs/32039 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
