<mime-type type="video/quicktime">
    <_comment>QuickTime Video</_comment>
    <magic priority="50">
      <!-- Check for common starting Atoms. These will have a 4 byte -->
      <!--  size before them. They almost always have 0x00 after, either -->
      <!--  the length of a child atom, or start of data -->
      <match value="moov\000" type="string" offset="4"/>