Eric,
Creating a looping title is usually pretty easy, but the exact ‘how-to’ will vary depending on the authoring application used. Typically all that is required is a link from the end of the segment back to the beginning. It will then continue to play until somebody presses stop or accesses a menu.
There will be a pause while the DVD player recues to the start of the segment. Just exactly what this will look like depends on the animation and the player being used. One suggestion would be to edit the animation loop into a 1-2 minute segment. That length would recue less often while still taking very little in terms of disc space.
Hope this helps.
Dave