Adding to what Chris said, I've recently had very good luck copying the
contents of CD-ROMs on to the hard disk.  I haven't tried this with
LaserROM, but you might be able to copy the contents of the CD to a
share that *can* be the root of a logical drive.  I have about 7 CDs
full of stuff including the entire MS Encarta 98 reference suite
installed on my hard disk at home.  No more CD swapping, everything
comes up quicker, and I can run everything at the same time.

This extravagant use of disk space was made possible when CostCo
started selling the 7Gb Maxtor Ultra DMA IDE drives for $280 and
I was unable to resist.

There's also a VirtualCD product out there which is specifically
designed for copying the *entire* contents of a CD into a file and
emulating the MSCDEX calls so that the application can't tell that
it's not a real CD.  This might be required for some programs which
use the existence of the CD as a form of copy protection.  So far
I've gotten away with just copying everything from the CD into the
root of a drive partition.

Back to the original problem though, I suspect that LaserROM, being
a relatively low-tech windows app, probably wants to see all of its
files at the root of a logical drive, and probably can't deal with
subdirectories.  Are you sure you can't export the specific location
as a separate "share"?  This would let you map a separate logical
drive to that location.  LaserROM definitely needs a logical drive
from my experience and won't just work with a network path.

G.