msycamore said:

Dark/Sega and V8 DVD's are two different preservations of the japanese Special Collection LD, X9 found on the newsgroup is a raw capture of the JSC LD, so that is probably what you're looking for.

Also, the X9 capture was not the source for V8 and Dark/Sega DVD's.

Wow, that's great! Thanks for the information.

I've wanted to experiment with TooT() (two-out-of-three) in AviSynth and I now have three different JSC sources to experiment with!

Looks like I'll have to IVTC X9 first...