AntcuFaalb said:

Question: Does anyone have any idea as to why the big ugly lefthand-side curve changes in size and shape throughout the entire film?

Question: What is the correct size? Someone mentioned in an earlier post that all I need to do is double the width. Is this correct? If so, please explain further, as I'd like to know!

q1. nope. not sure what it is either. My guesses were an unstable piece in the projector masking part of the film or a crack or warp in the 1978 vcr or master cassette?

q2 I would refer to TServo2049's post

http://originaltrilogy.com/forum/topic.cfm/NEW-possibly-2nd-Generation-77-78-Bootleg/post/583437/#TopicPost583437

When I used the force aspect ratio 266:100 in vlc it looks pretty spot on, unfortunately at the moment I have very limited internet access so I can't access much at the moment. There are aspect ratio calculators online and you can count pixels and stuff. To me one way to be really really sure you are spot on MIGHT be to find an accurate reference (e.g. blu ray frame) with a square/rectangular shape within it (since you can't use the outer edges of the PS78) then resize the matching ps78 frame so it overlays perfectly via that square/rectangle then go back and find what you multiplied the original height and width to make it fit and apply that across the whole thing