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        <h1>AC-3 (Dolby Digital)</h1>
        <p>AC-3 is a codec used on video DVDs. It supports up to six audio channels.</p>
        <div class="options">
            <h2>Options</h2>
            <ul>
                <li>
                    <strong>Bitrate</strong> (number)<br/>
                    Set a specific bitrate to control file size. Default is 128000.<br/>
                    <pre><code>bitrate=128000</code></pre>
                </li>
            </ul>
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        <iframe src="common.html" scrolling="no" frameborder="0"></iframe>
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