Does anyone know why when I imported an MTS file (recorded from my August TV recorder) into Avidemux, remuxed the file to MP4 file, that the outputted framerate was different to the original file framerate?. Instead of getting 25fps I'm getting 29fps for some odd reason. I've checked the outputted remuxed file and there's no sign sync issues I can see. Why is it outputting at a different framerate, anyone know?. I have changed any of the settings; video and audio output is set to "Copy".