Trying to mount archived mbox file from cdrom in folder of evolution profile

[John Toliver]

what I'm trying to do:

Place a cdrom with my stored emails from the previous year into my
drive and have it appear in my evolution profile.  This would allow me
to browse them and look for information then close the folders and
pull the CD out.  I don't want to copy the whole mbox file back into
the profile for evolution to be able to read it.

What I've tried so far:
I've been able to copy a simple mbox file into the evolution profile
and have it show up, and evolution will even recognize a link to the
file BUT I can't make a link from a mounted volume like a cdrom.
Also, when I place the test archive on a flash drive, evolution tries
to read it and then gives up saying it can't lock the file which means
I can't even open an archive sitting on a USB flash drive with rw
ability (formatted as fat32).

I just want a clean way of being able to add my old email file
structure when I need to, and then pull it out without having to make
space for a few hundred MB of emails.

Alternatively if evolution can be made to look at the cdrom drive that
would be great also.

Any ideas would be great.