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<page xmlns="http://projectmallard.org/1.0/"
      xmlns:its="http://www.w3.org/2005/11/its"
      type="topic" style="problem"
      id="video-dvd">

  <info>
    <link type="guide" xref="media#music"/>
  
    <revision pkgversion="3.13.92" date="2014-09-20" status="final"/>
    <revision version="gnome:42" status="final" date="2022-02-26"/>

    <credit type="author">
      <name>GNOME Documentation Project</name>
      <email>gnome-doc-list@gnome.org</email>
    </credit>
    <credit type="editor">
      <name>Ekaterina Gerasimova</name>
      <email>kittykat3756@gmail.com</email>
    </credit>
    <credit type="editor">
      <name>Michael Hill</name>
      <email>mdhillca@gmail.com</email>
    </credit>

    <include href="legal.xml" xmlns="http://www.w3.org/2001/XInclude"/>

    <desc>You might not have the right codecs installed, or the DVD might be
    the wrong region.</desc>
  </info>

  <title>Why won’t DVDs play?</title>

  <p>If you insert a DVD into your computer and it doesn’t play, you may not
  have the right DVD <em>codecs</em> installed, or the DVD might be from a
  different <em>region</em>.</p>

<section id="codecs">
  <title>Installing the right codecs for DVD playback</title>

  <p>In order to play DVDs, you need to have the right <em>codecs</em>
  installed.  A codec is a piece of software that allows applications to read a
  video or audio format. If your movie player software doesn’t find the right
  codecs, it may offer to install them for you. If not, you’ll have to install
  the codecs manually — ask for help on how to do this, for example on your
  Linux distribution’s support forums.</p>

  <p>DVDs are also <em>copy-protected</em> using a system called CSS. This
  prevents you from copying DVDs, but it also prevents you from playing them
  unless you have extra software to handle the copy protection. This software
  is available from a number of Linux distributions, but cannot be legally used
  in all countries. Please contact your Linux distribution for more information.</p>

  </section>

<section id="region">
  <title>Checking the DVD region</title>

  <p>DVDs have a <em>region code</em>, which tells you in which region of the
  world they are allowed to be played. If the region of your computer’s DVD
  player does not match the region of the DVD you are trying to play, you won’t
  be able to play the DVD. For example, if you have a Region 1 DVD player, you
  will only be allowed to play DVDs from North America.</p>

  <p>It is often possible to change the region used by your DVD player, but it
  can only be done a few times before it locks into one region permanently. To
  change the DVD region of your computer’s DVD player, use <link
  href="http://linvdr.org/projects/regionset/">regionset</link>.</p>

  <p>You can find
  <link href="https://en.wikipedia.org/wiki/DVD_region_code">more information
  about DVD region codes on Wikipedia</link>.</p>

</section>

</page>