Thanks for your advice for future projects. I appreciate it. Unfortunately, in this case, I was handed this project by a third party and they themselves don't have access to the original lossless files. For my own projects, I usually try to keep the original uncompressed files archived. Though, I do need to get a Blu-Ray setup going as I am running out of hard drive space. As for this current project, the final destination will be Youtube. What if I exported the After Effects Animations I'm working on as .mp4s and then loaded in them into the sequences with the .mp4 video and then exported the whole sequence uncompressed? Will it still be massively large even if the original video file was .mp4 size? Or is there another option that would work better?