Have you tried using the VLC Player to record the short?
It wouldn't even let me play it in VLC, so yeah, that didn't work.
As I mentioned on Rowdy's site, I have fond memories of this special due to seeing it during a Disney Channel preview weekend. For those too young to know, Disney was originally like HBO and Cinnemax in that you had to pay for it. Whenever we had the channel I would watch Disney Zorro.