Running the python script attachment available here allows the DVD burner to work perfectly for DVD disc as well. From comment above.
Should have added sometimes, it is touch and go. The script does not always get Plextor burner working. -- hal detects written DVD as empty https://launchpad.net/bugs/14692 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs