    <!--
                Copyright: Copyright 1998-2001 W3C (MIT, INRIA, Keio), All Rights Reserved.
    See http://www.w3.org/Consortium/Legal/.
    Author: Muriel Jourdan (Muriel.Jourdan@inrialpes.fr)
               Version: Oct 10th, 2000, v1
                Module: SMIL Timing & Sync Module
               Feature: begin=id.begin with id that never starts
             File Name: begin_begin_syncbase_excl1.smil
      Media Components: 2 JPG, 1MPG(5.6s)
     Expected Behavior: only the video is played for 5.6s
    -->
    <smil xmlns="http://www.w3.org/2001/SMIL20/Language">
      <body>
         <excl>
          <priorityClass peers="never">
            <video src="../videos/nist.rm" begin="0s"/>
            <img src="../images/smile.jpg" begin="3s" dur ="4s" id="image1" />
            <img src="../images/frown.jpg" id="image2" begin="image1.begin+4s"
                 dur="5s"/>
          </priorityClass>
         </excl>
      </body>
    </smil>