When I load a blank cd into the optical drive on my CentOS-6.7 workstation I am not getting any window or visible mount action on my Gnome desktop. Formerly, when I mounted a writeable media in this drive on this host I would see a nautilus style file browser window open with inducements to add files.

When I visit /mnt I see nothing:

ll /mnt total 0

My fstab does not seem to have much to say either:

cat /etc/fstab

# # /etc/fstab # Created by anaconda on Mon Sep 24 12:57:28 2012 # # Accessible filesystems, by reference, are maintained under '/dev/disk' # See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info # /dev/mapper/vg_vhost04-lv_root / ext4 defaults 1 1 UUID=a9a7cc59-bd0c-4362-9ab6-f721e25df2f8 /boot ext4 defaults 1 2 /dev/mapper/vg_vhost04-lv_home /home ext4 defaults 1 2 /dev/mapper/vg_vhost04-lv_tmp /tmp ext4 defaults 1 2 /dev/mapper/vg_vhost04-lv_log /var/log ext4 defaults 1 2 /dev/mapper/vg_vhost04-lv_spool /var/spool ext4 defaults 1 2 /dev/mapper/vg_vhost04-lv_swap swap swap defaults 0 0 tmpfs /dev/shm tmpfs defaults 0 0 devpts /dev/pts devpts gid=5,mode=620 0 0 sysfs /sys sysfs defaults 0 0 proc /proc proc defaults 0 0 /dev/vg_vhost04/lv_data_disk_images /var/data/disk_images ext4 defaults 00 /dev/vg_vhost04/lv_home_byrnejb /home/byrnejb ext4 defaults 0 0 /dev/vg_vhost04/lv_var /var_new ext3 defaults 0 0

The hardware seems to be there:

lshw . . . *-cdrom description: DVD-RAM writer product: DVD-RAM GH22NS30 vendor: HL-DT-ST physical id: 1 bus info: scsi@3:0.0.0 logical name: /dev/cdrom logical name: /dev/cdrw logical name: /dev/dvd logical name: /dev/dvdrw logical name: /dev/scd0 logical name: /dev/sr0 version: 1.01 capabilities: removable audio cd-r cd-rw dvd dvd-r dvd-ram configuration: ansiversion=5 status=nodisc *-serial UNCLAIMED description: SMBus product: 82801JI (ICH10 Family) SMBus Controller vendor: Intel Corporation physical id: 1f.3 bus info: pci@0000:00:1f.3 version: 00 width: 64 bits clock: 33MHz configuration: latency=0 resources: memory:d0825800-d08258ff ioport:1180(size=32) . . .

Now, I have not played with any of this stuff in quite some time and I used it late last year to cut CentOS-7 ISOs. So my question is: What has changed to cause this behaviour? Any ideas?