Synchonisation Problems Sony HX9V

[rodgar]

Since 18 month I encode all of my families old Homevideos to make them AVCHD-compatible. In the end, I have one MKV per event (Vacation, Birthday etc.) with Subs and Chapters - And if I want, I can put it in tsMuxer to make a burnable AVCHD Stucture.

Since that, I get in touch with the following AVCHD-Camcorders: Canon HF S100, Panasonic V500EG, Panasonic TZ31 and Sony HX9V.
I have no problem with all of them except the HX9V. Many Videos are sightly out of Sync but not all of them - Not a big deal I thought. But the problem is, if joined together with tsmuxer or tsdemux the beginning is ok, but in the end I have almost a second or more mismatch - audio behind video.

So I have 2 Questions:
1. Is there a way to analyse the audio and video through avisynth - maybe to get something like "videoclip1 ends here <frame>" "audioclip1 ends here <frame>" and so on... or a working solution for this mess? Or a script or tool which shows the differences between a working clip and a not-working one.

2. More general: Why is this only a HX9V problem? In fact I could understand if NO joined MTS from any camcorder would be in sync because of the different length of audio and video and because almost every MTS has a positive or negative audiodelay, but why does it work fine everytime except with the HX9V?

Here are two original Videos taken with the HX9V. First (00075) is in sync, second (00076) is not - But both of them have a 32ms audiodelay (DGIndexNV).
http://speedy.sh/AJWhW/2011.11.26.zip

P.S.
Sorry for writing in german before, lost my head