Found it. Don't know if the upgrade had something to do with it but the problem was the Multisession mode setting got changed to "No multisession". My bad for not checking sooner. Just didn't think of it because I always leave it on the default "Auto" setting.
** Changed in: k3b (Ubuntu) Status: Incomplete => Invalid -- k3b won't write to appendable DVD https://bugs.launchpad.net/bugs/305206 You received this bug notification because you are a member of Kubuntu Bugs, which is subscribed to k3b in ubuntu. -- kubuntu-bugs mailing list [EMAIL PROTECTED] https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs