This is the same on most distros. First of all you need to make a mount point. This is nothing but an empty directory where you want to see the data on the CD or data dvd. To make the directory, form a konsole, use the command 'mkdir mountpoint' where mountpoint is the name of the new directory. Typical places are in the /mnt directory, or /media directory. So, navigate to, say /media in your console and run the command 'mkdir cdrom' as an example. ( no quotes ).
Then edit as root your /etc/fstab file and add an entry to mount the cdrom. Here is what it looks like on my system.
/dev/hda /media/cdrom auto umask=0,user,iocharset=iso8859-15,codepage=850,noauto,ro,exec,users 0 0
You will have to know the first part, '/dev/hda' My system has a serial HD, and 1 IDE device, the cdrom/dvd burner. Look in the /dev directory to find out what your CD/DVD is known as.
The next field is the mount point you created above. The 'auto' is the file system type. Depending on the media, it can be different. 'auto' will try different FS's find out what is on the CD/DVD. Note the 'ro' field. This is correct for data CD's. They are read only. There are other options, look in the mount man page for more details; if you want to know what each does. That is about it.
You don't have to boot to try it out. Put in a data CD ( not an audio cd, you don't mount audio CD's ) and as root run the command 'mount -a'. That will cause the system to try and mount everything in /etc/fstab.