After copy I got blocked DVD-drive. DVD was reading all the time. I couldn't unmount it, so I used pin for eject. After that I ejected DVD, but DVD-drive was working all the time. I think it is a serious bug!
-- Gnome hangs DVD reading DVD+RW disc https://launchpad.net/bugs/29720 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs