i had found a way to get a perfect MPG out of this M2V and Atract3 wav.
- extract the movie + subdata (i have a extractor for KH2, so i don't must use Cube Media Player or other tools)
- merge the wav header with this subdata and edit Filesize pointer.
(my .bat for this: copy /b "Atrac3_header.bin" + "File_12.dat" "File_12.wav")
- convert the new .wav file with Windows Audiorecorder in a normal PCM .wav, then use this .wav to convert it into .mp2 ( i use headac3he-0.23a for this).
- the last step: merge Movie.m2v + Movie.mp2 (I use TMPEnc Plus 2.5 - MPEG Tools) to get a fully working Movie without speed errors. (tested with KH2FM Secret Ending)
i think this speed errors comes normaly from the header itself, so I upload my used header.