Arnie.d said:

I still have a script somewhere for averaging 3 or 5 sources. But I'm not at home so I can't check what it does exactly. Some help would be nice. I've never actually used an averaging script/filter.

I will IVTC so it will be 23.976 progressive.

The median filter in Avisynth would be very similar to what I'm doing in my "stabilize" script, except that instead of using motion compensated neighboring frames, you would use 3 different sources.

something like this:

Interleave(source1,source2,source3)
Clense(reduceflicker=false)
SelectEvery(3,1)

You would need to capture the 3 sources in EXACTLY the same way every time, and they would need to be time aligned. It wouldn't matter if you did this before or after IVTC.

You could also do it with 5 sources, but you can't use the VERY fast "clense" median filter, since that only handles 3 frames. You would need to use the EXTREMELY slow "MedianBlurT", and to make things even slower, you have to process 5 frames instead of 3.

These are merely suggestions, as I'm sure that whatever you do will be a great addition to the preservation effort! Let me know if there is any help I can lend.

-G