I think this is the same problem I had. I fixed it by disabling open drive after disk is completed. Instead of burning the disk and locking up it continued with verification.
Settings -> Configure k3b Under Advanced check "Do not eject medium after write process" -- k3b error when writing and verifying DVDs using slimline drive https://bugs.launchpad.net/bugs/114758 You received this bug notification because you are a member of Kubuntu Team, which is subscribed to k3b in ubuntu. -- kubuntu-bugs mailing list [EMAIL PROTECTED] https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs
