title: VLC: How to Create a Genuine MP4 (not M4V) File?
body: <p>At "File -> Convert/Stream" menu item, applying "Video - H.264 + mp3 (mp4)" profile will result in a file in m4v format instead of mp4! </p>
  
  <p>Now, changing the extension from m4v to mp4 will work on some devices, while others the audio will be corrupted.</p>
  
  <p>Is there a way to produce a genuine mp4 format file from VLC? If not how to reliably convert m4v into mp4?</p>