I'm not the source.
But I was amazed when I looked at a Blu-ray disc that its file structure is just a collection of MP4s. I'm so used to the opaque VOBs of a DVD, but on the Blu-ray disc the animated bit should just be its own separate segment. Far less frustrating than extracting the video once it's encoded to a DVD.
And I'm DEFINITELY looking forward to seeing what you come up with!