title: Convert videos with all contained subtitles and audio into mp4 via commandline using handbrake
body: <p>I'd like to convert my videos with Handbrake from mkv to mp4. But I want all audio files and subtitles contained in the mkv into the new mp4 container!</p>
  
  <p>I use Handbrake 0.9.9 GUI because in this version you can predefine the amount of audio tracks and subtitles per default under preferences (<code>'Add all remaining'</code> / <code>'Add all'</code>. Now i'd like to achive the same via HandBrakeCLI.</p>