Setting up gnome

Hi,

When I right click on the desktop I have a "Disks" menu with CD-ROM
inside.

But I cannot mount the cdrom this way as I should be a super user to do
so.

So is there a way to setup this menu so it will launch a customized
command instead of the default one? To mount my cdrom I should do:
# mount -r -f cd9660 /dev/acd0 ~/cdrom

Thanks