OmegaMattman said:

The problem with the AVCHDs seems to have been related to using a separate M2TS stream for the opening anti-piracy and sound options notice. The streams have been joined and the problem seems gone. Weird :/

@OmegaMattman:

Just wanted to again say awesome job on this.

I see you ran into something that I did when muxing to AVCHD except you conqured it. hehe Just curious, I notice you merged your splash screens into the feature data stream and still had your background music on each sound channel... NICE! My method for doing this is tedious and was hoping you had a quick tip or a link to doing this efficiently.

You can laugh at me but I was using audacity to create fill in music for all my different sound channels so that mkv merge would be happy with me when i merged my splash screens with the feature. I don't intent to jump the thread off-topic just a hint would be much appreciated tho if you have any ideas :)