In order to have your cd drive mounted, do the following:
The file /etc/fstab contains mount instructions, so you need to edit that file:
Open terminal and switch to root mode -> type su
type root's password.
open fstab in your preferred text editor,
gedit /etc/fstab (gnome text editor)
or kedit /etc/fstab (kde text editor).
Now try inserting this line in fstab:
/dev/cdrom /mnt/cdrom iso9660 noauto,user,ro 0 0
not 100% sure that this is the exact line...if not google for fstab cdrom line.
Before inserting the above line, look in fstab for a similar line. Maybe your cd is allrady mounted somewhere else e.g. /media/cdrom - in that case just try looking for your cd at that location...
Save and close text editor.
The above line tells the system to mount your cdrom on the directory /mnt/cdrom so
still in root mode do:
Now logout and in.
Insert a cd in your cd drive and look for it in /mnt/cdrom
If this doesn't work, paste your fstab content here...