I'm using Precise, with GNOME. I've attempted to install some retro,
multi-cd games (KOTOR1) via .ISO images and WINE,

but I can't get the ISO's to mount correctly. First I tried GMountISO, which showed a read-only warning but worked - until I went to unmount. When the installation program asked for CD 2 I couldn't unmount from the /cdrom folder because neither GMountISO or umount from terminal could detect the mount.

After a reboot, I changed to GISOMount (different somehow, I guess?), but when I attempt to mount the ISO I get an error window explaining the syntax of the mount command and, which is also what I get when I attempt to use mount from terminal. After checking /media from terminal on a lark I see the disc mounted there twice over, but umount won't recognize it, even when I specify the full path sudo umount /media/KOTOR_1.iso. It cleared up upon reboot.

Can someone please assist?

UPDATE :: Thanks for the quick response. What's weird, is the images are like stuck in limbo... I'll show you:

sc@sc-HP-110-3700:/media$ ls
cdrom KOTOR_1(0)(vcd) KOTOR_1(vcd)
sc@sc-HP-110-3700:/media$ cd cdrom
sc@sc-HP-110-3700:/media/cdrom$ ls
sc@sc-HP-110-3700:/media/cdrom$ cd ..
sc@sc-HP-110-3700:/media$ umount KOTOR_1(vcd)
bash: syntax error near unexpected token `('
sc@sc-HP-110-3700:/media$ umount KOTOR_1.ISO
umount: KOTOR_1.ISO is not mounted (according to mtab)
sc@sc-HP-110-3700:/media$ sudo umount -a
umount: /run/shm: device is busy.
(In some cases useful info about processes that use the device is found by lsof(8) or fuser(1))
umount: /run: device is busy.
(In some cases useful info about processes that use the device is found by lsof(8) or fuser(1))
umount: /dev: device is busy. (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1))
umount: /: device is busy. (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1))
sc@sc-HP-110-3700:/media$