ok, you have to have codec installed, otherwise playback will be 'iffy' for some people, i have also found out that those who use codec packs get these strange problems, always install everything independantly. Also i have requested the files i use to playback be posted here, as soon as i get response from webmaster i will post further.
if anyone have not tried, you can try to play it with zoomplayer 4.0 basic.
For those who are having audio problems, try reinstalling ffdshow, and set video decoder to decode only x264,h264, BUT for audio decoder set it to decode mp3 audio, this is just as same as normal LAME or Fraunhofer mp3 decoding just FFDSHOW will decode your audio.