There were two issues:
1. The problem was the resolution. Quality encoders like MainConcept
, or NLEs like Premiere, will throw a fit if you try to give it odd resolution source. For example, widescreen 16x9 HD content downscaled to 720x405, which is an approximate rounded-down resolution. It needs to be either x404 or x406. Even then, some encoders will gripe if it's not div 4. Avidemux
just crashes and/or has odd problems.
2.6.10 and 2.6.11 refuse to work. But 2.6.4 has no issues.