Using leopard CPU Drop-In Upgrade DVD for base

I don't see the title as being one of the supported DVD volume names in the script, but is there any reason one couldn't use the CPU upgrade DVD that came with all the "Leopard" machines bought during the transition? Searching the forums only yields a single post on this topic: https://www.afp548.com/forum/viewtopic.php?forum=45&showtopic=18747&highlight=Mac%20OS%20X%20Upgrade%20DVD Where someone is using a non instaDMG script fine. I know the GUI installer checks for Tiger, but not sure about the CLI version. I may try and run a build tonight after modifying the script for that string... -P