Afraid I don't see any problem with mounting cd-roms.
The form I use (modified for your specifics)-
"mount d -t cdrom /media/cdrom"
works fine for me. (Though I typically use other options for mounting depending on the game)

By any chance do you forget to include the leading slash in /media/cdrom when you try to mount it?

Other possible solutions-
Are you certain that /media/cdrom is the correct path?
Does your distro automount? (Some do not especially older ones) If not you will need to mount it under Linux before it can be mounted in dosbox.
(If if you can run "ls /media/cdrom" and see the files from the cd, both of these suggestions can be ignored.)

Thanks for the help. I was under the impression that in Linux everything I was mounting had to b prefaced by ~. Now I realize that was what was preventing me from mounting a cdrom. Unfortunately the game I was trying to play just turns the screen black crashing my computer, but at least I have the cdrom mounted properly.

Actually ~=home under linux, or in your specific case /home/Glen.

About the screen turning black and crashing the computer that sounds strange.
The only time when dosbox would crash my computer was when I had some bad drivers that couldn't run dosbox in fullscreen.
Otherwise when dosbox crashed, my computer kept running fine.
Perhaps try playing around with the display options?

Taskr36 wrote:

I can't mount anything that isn't prefaced by /home/Glen (my personal folder)

Wait, that sounds like permission problem. Can you access (let alone mount) anything other than your home folder?

Wait, that sounds like permission problem.

Did you read the replies to this thread???