There is high quality footage and a friend of mine has to edit it on a potato and I convert every file for him into a smaller format to be able to edit it, and I would use the converted files as proxy files, so when he finishes the project I can render for him.
Vegas renders too big proxy files that his PC can't play back in real time so I'd like to render them using batch render (render regions - yes by selecting and pressing R on every event) while keeping the filenames.