Actually that is the source video, I downloaded it + subs from Youtube.

My problem is that I’m trying to edit two movies into a double feature cut. I have the Criteria Collection BluRay of the first movie and it is gorgeous, a true work of art. The second film is likewise but it’s only available on DVD and then upscaled from them. There is a real quality mismatch trying to cut the movies together so I just have to settle for lower quality now, although I’d like to preserve what I can.