i don't know if this will work.
what files exactly do you have on that DVD-ROM ?
usually when you install off CDs, the installer expects a few discs and prompts you at various time to insert disc #3 etc.
if you just copy the files from the installation DVD and split them across a few CDs it might confuse the isnstaller - it expects to see certain files on the installation media (disc #1) but won't find them.
then again, if you're doing a minimal installation you might not run into problems.
maybe Socheat will see this (he's an expert at Linux).
you can always download CD installation ISOs and burn them to CDR.
One Ring to rule them all, One Ring to find them,
One Ring to bring them all and in the darkness bind them
In the land of Mordor, where the Shadows lie
M.C. Escher - Reptilien