title: Video Codec for all major browsers
body: <p>I am using </p>
  
  <blockquote>
    <p>video/mp4</p>
  </blockquote>
  
  <p>format and using in <strong>'video js'</strong>, this is working fine in chrome but having issue with Firefox. Getting following error in console:</p>
  
  <p><strong>Specified "type" attribute of "video/mp4" is not supported. Load of media resource # failed.</strong></p>
  
  <p>Is there any single video codec supported by all major browsers like Chrome, Firefix, IE and Safari.</p>
  
  <p>Thanks in advance.</p>