My real goal is to disks that play as HD DVD’s on DVD9 media.
As far as how I am doing it so far. With mpeg stuff it was easy. MKVextract (split audio and video) -> tsMuxeR (convert to .ts file) -> Videoredo(to convert .ts to mpeg) -> Ulead MF6+ (create HD DVD structure) -> Nero 7 (burn folder to disk) I think I can skip videoredo now as the HD powerpack for MF6+ can handle .ts files.
H264 stuff seems to be much more intense. MKVExtract (split audio and video) -> MEGUI (h264 to SA HD DVD profile and add boarders to make file 1920x1080 if needed) -> H264Info (add pulldown to change fps to 29.97 if needed) -> eac3to (take split audio file and convert to AC3 if needed) -> tsMuxeR (mux video and audio file into .ts file) -> MF6+ w/HD powerpack (create HD DVD folder structure) -> Nero7 (burn folders to disk)
Now all these are done provided the original file has been cut to suitable size. Also I have added who knows how many codec readers etc in my fumbling to come up with this system. I am sure I forgot some programs also.