h
        this format's MIME type/subtype strings supports multiple protection
        schemes, when used with Encrypted Media Extensions, these strings refer
        specifically to content encrypted and packaged using the 'cenc' or
        'cbcs' protection schemes, as defined by section 4.2 of [[CENC]].
      </p>
    </section>

    <section id="sotd">
    </section>

    <section id="stream-format">
      <h2>Stream Format</h2>
      <p>
        ISO Base Media File Format [[ISOBMFF]] content that is en