Aspect Ratios: Why.

Making my multi-trilogy vid (I guess primarily ST, but also lots of PT and OT), and oh dear Force. The aspect ratios. All PT and OT movies are 1920x816. This is fine. This is an okay aspect ratio. It is consistent.

The ST however? That's 1920x800. ...except for TROS, which is inexplicably 1920x804. WHY. WHY????? WHYYYYYYY????????