SUBSYSTEM=="block", ACTION=="add", ENV{ID_CDROM}=="?*", ENV{MDV_CONFIGURED}!="yes", PROGRAM="/bin/flock /sys/block /lib/udev/cdrom_helper", SYMLINK+="%c"
SUBSYSTEM=="block", ACTION=="add", ENV{ID_CDROM}=="?*", ENV{MDV_CONFIGURED}!="yes", PROGRAM="/bin/flock /sys/block /lib/udev/cdrom_helper", SYMLINK+="%c"