I believe the DuckTales pilot movie was released on a Japanese LD, but the Rescue Rangers one wasn't. I'd be interested in seeing the latter - the first two series' pilot movies were actually condensed from the 5-part versions (I believe the entirety of Cold Ducks was left out of the movie version of Treasure, for one example.)

(And I wonder, does anybody have original airings of the Rescue Rangers episodes that aren't on DVD? Some episodes were re-edited after the initial airings, and original versions have never surfaced to my knowledge.)