The instructions under "concat demuxer" on this page work for the video but no so much for the audio: http://ffmpeg.org/trac/ffmpeg/wiki/How%20to%20concatenate

The instructions under "concat demuxer" on this page work for the video but no so much for the audio: http://ffmpeg.org/trac/ffmpeg/wiki/How%20to%20concatenate%20%28join,%20merge%29%20media%20files http://ffmpeg.org/trac/ffmpeg/wiki/How%20to%20concatenate%20...