To answer my own question, from the screen captures on blu-ray.com I would say that RDU is NOT a direct-to-digital transfer. Either too much effort or not possible to go back to the original digital source apparently. Still looks good, but probably could have been better if the source content...
Is the transfer of "Rescuers Down Under" direct-to-digital or finished on film? "RDU" was Disney's first foray into all digital animation, while "The Little Mermaid" was the final studio film produced on film from ink & painted celluloid.
Unfortunately the previous SD DVD release of "RDU" used a...