I am getting a similar error when I launch k3b. The entire system hangs (except the mouse cursor moves slowly). I have a similar internal drive, the TS-H552U. Attached is an excerpt of the kernel trace in my syslog.
** Attachment added: "Syslog" http://launchpadlibrarian.net/9126840/gabeheim_bug.txt -- k3b hangs on launch with usb dvd burner TSSTCorp TS-H552b https://bugs.launchpad.net/bugs/128938 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs