StaxRip + meGUI - audio is going mute, muxing issue

[RapidHex]

Hello!
First of all, I'd like to apoligise for my English, I'm form Poland.

My problem is very, very weird. I'm using StaxRip (1.1.1.0) to encode video, and meGUI to encode audio (Nero AAC 64kbps). I mux this in mkvtoolnix. Unfortunately there are a lot of movies which I can't mux correct. Namely after about half time of movie, audio is going mute. It's synchornized and suddenly sound is off. I don't see or hear any errors.

I prepare short sample (800 kb):
http://rapidshare.com/files/264480399/sample.mkv

I've reinstalled codecs, programs, everything... I've tried mux video with original mp3 audio. I used AVIMux. I encode these files on differnt computer and nothing help!

I'm already depressed... Please help me!

[Betsy25]

Sorry, I'm not an expert, far from that, but have you tried using StaxRip for video AND audio encoding, StaxRip does use NeroAACEnc.
Perhaps a version mismatch between the demuxers used in MeGui and StaxRip ?

Hope someone more knowledged can help you it if these tips don't get you anywhere.

[RapidHex]

@up
I've tried this now, but the same effect. Although I forget mention that, for a wonder, MediaCoder handles with it. However we all know, StaxRip provides definitely better quality so... And it's not only one movie. Unless there is some way to copy StaxRip's x264 setup to MC, but I doubt.

Waiting for other suggestions.