i noticed that when playing in km player there is also a delay in sound like its running fast foward. and the end of the video is without sound.
i assume sound is encoded in 24/30 fps so if video is 50, there is some sory of gap..
If someone needs very well when encoding video using the codec here x264vfw
All other codecs that bull**** they are coded wrong size / quality
And there x264vfw is no problem with the codec at all