* video/x-msvideo=avi<br>
     * video/x-flv=flv<br>
     * video/mpeg=mpeg<br>
     * video/mp4=mp4<br>
     * video/ogv=ogv<br>
     * video/quicktime=qt<br>
     * video/x-m4v=m4v<br>
     * audio/x-aif=aif<br>
     * audio/midi=midi<br>
     * audio/mpga=mpga<br>
     * audio/mp4=mp4a<br>
     * audio/ogg=oga<br>
     * audio/x-wav=wav<br>
     * image/webp=webp<br>
     * image/bmp=bmp<br>

      <match value="ftypF4B " type="string" offset="4"/>
    </magic>
    <glob pattern="*.mp4a"/>
    <glob pattern="*.m4a"/>
    <glob pattern="*.m4b"/>
    <sub-class-of type="application/quicktime" />
  </mime-type>
  <mime-type type="audio/mp4a-latm"/>
  <mime-type type="audio/mpa"/>
  <mime-type type="audio/mpa-robust"/>

  <mime-type type="audio/mpeg">
    <alias type="audio/x-mpeg"/>