A DVD does not contain enough packages to rebuild the installer images. If you are using a DVD and you want to rebuild the installer images, you will need to have a network connection and a mirror you can reach.
There is a list of required packages, but since the packages change per release and may change in the middle of the release cycle as well, we cannot hand you a list that just works. If you really want to know though, the list of packages are in Revisor's
cfg.py. Maybe you can write a plugin with a command-line option that spits out the required packages per model, and optionally download all of them, and create a repository out of the downloaded packages. If you do so, please let us know at the Revisor Development mailing-list at
https://fedorahosted.org/mailman/listinfo/revisor-devel, and we'll be glad to help you out or maintain the plugin upstream.
