One more thing that came to my mind. It is possible this automount and correct recognition has stopped working after using DVD-RW drive in drive dock (Dell Latitude D610) for two days instead of my own DVD-ROM drive.
-- [Edgy] DVD drive is probably not recognized properly, no automount https://launchpad.net/bugs/56593 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs