Can you please try this again, enter the following after inserting the CD and copy&paste the output here:
ls -l /dev/cdrom mount gnome-eject -vbd /dev/cdrom
Please also attach /etc/fstab.
Can you please try this again, enter the following after inserting the CD and copy&paste the output here:
ls -l /dev/cdrom
mount
gnome-eject -vbd /dev/cdrom
Please also attach /etc/fstab.