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<h1>SMIL Files</h1>
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<p class="intro">A SMIL file describes a multimedia presentation. </p>
<hr />
<h2>SMIL Files</h2>
<p>A SMIL file contains all the information necessary to describe a multimedia
presentation.</p>
<p>SMIL files are stored with the file extension *.smil</p>
<p>A SMIL file contains the following:</p>
<ul type="square">
<li>The layout of the presentation</li>
<li>The timeline of the presentation</li>
<li>The source of the multimedia elements</li>
</ul>
<hr />
<h2>SMIL Markup</h2>
<p>Since SMIL is based on XML, the tags are case sensitive. All SMIL tags requires
lowercase letters. </p>
<p>A SMIL document must start with a <smil> tag and end with a </smil> closing
tag. It may contain a <head> element and must contain a <body> element.</p>
<p>The <head> element is used to store information about the presentation layout
and other meta information.</p>
<p>The <body> element contains the media elements.</p>
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<tr><td>
<pre><smil>
<body>
<seq repeatCount="indefinite">
<img src="image1.jpg" dur="3s" />
<img src="image2.jpg" dur="3s" />
</seq>
</body>
</smil></pre>
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<h2>How to Play a SMIL File?</h2>
<p>To play a SMIL presentation, you will need a SMIL player. Different SMIL
players can be found on the Internet:</p>
<ul type="square">
<li>
<a target="_blank" href="../../www.realnetworks.com/default.htm">RealOne Platform</a> by RealNetworks
has full support for SMIL 2.0</li>
<li><a target="_blank" href="../../www.oratrix.com/default.htm">GRiNS for SMIL-2.0</a> by
Oratrix provides a SMIL 2.0 player</li>
<li><a target="_blank" href="../../www.inobject.com/default.htm">SMIL Player</a>
by InterObject supports the SMIL 2.0 Basic Profile</li>
</ul>
<hr />
<h2>Playing SMIL Presentations in Internet Explorer</h2>
<p>With Internet Explorer 5.5 or later, SMIL elements can be inserted into HTML
files.</p>
<p>This way any SMIL presentation can run over the Internet as standard HTML
files.</p>
<p><b>The rest of this tutorial will use Internet Explorer 5.5 or later to
demonstrate the use of the different SMIL elements.</b></p>
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