Ok, my mistake..

I thought you had already an upscaled LD rip kept, before you put on the filters.

then the 480i would do just fine, reduced to a small file size. (meaning again eg. 10 GBs from 40)

Does that need work?

I still think it would look much better than the previous LDrip in circulation.

Don't want it so much for the grain, but because the filtered one lacks depth, and the picture seems very flat. Like they are all one thing together (characters and backgrounds).

Anyway, just thought to try.

If it does involve a lot of work, I can understand that you can't do it..