Hey, Bob. Only place currently offering ON THE COMET (vhs only) that I know of is Movies Unlimited:

www.moviesunlimited.com/m...76D8RB9HC3

As for DVD, besides JULES VERNE (which I believe is still available) JOURNEY TO THE BEGINNING OF TIME is available from BijouFlix. I have no idea of the quality, but I've been meaning to give it a try (I still have my GoodTimes vhs from a few years back):

www.bijouflix.com/goods/b...ybegintime

I borrowed THE STOLEN AIRSHIP on vhs years ago from someone but don't recall where it came from. Also Zeman's animated Sinbad (possibly Moonlight Cinema?). Dang it, we need more Zeman!