What's the best approach when you are not sure the original source is in any normal ratio?
For example, starting from:
Initial idea is to maintain the approximate resolution, convert to proper ratio and remove the top/bottom bars. For output to a smallish DVD.
Is it best to take an official source and use it as an underlay, tweaking till it's close? I'm expecting that there is some l/r cropping in the source. Which would mean there might end up having black bars on the side like the Bond examples shown several posts back, to maintain the 16:9 ratio.