diff --git a/index.html b/index.html
index 05a8e0c..b8f928a 100644
--- a/index.html
+++ b/index.html
@@ -1408,6 +1408,29 @@ foreach ($file in $inputfiles) {
   </div>
   <!-- ends Play VGA SMPTE bars -->
 
+  <!-- Broken DV -->
+  <span data-toggle="modal" data-target="#broken_dv"><button type="button" class="btn btn-default" data-toggle="tooltip" data-placement="bottom" title="Make a broken DV file from a perfectly good one">Broken DV</button></span>
+  <div id="broken_dv" class="modal fade" tabindex="-1" role="dialog">
+    <div class="modal-dialog modal-lg">
+      <div class="modal-content">
+        <div class="well">
+          <h3>Makes a broken DV test file</h3>
+          <p>Modifies an existing, functioning DV file and intentionally breaks it for testing purposes.</p>
+          <p><code>ffmpeg -i <i>input_file</i>.dv -bsf noise -c copy <i>output_file</i>.dv</code></p>
+          <dl>
+            <dt>ffmpeg</dt><dd>starts the command</dd>
+            <dt>-i <i>input_file</i>.dv</dt><dd>takes in a normal DV file</dd>
+            <dt>-bsf noise</dt><dd>sets bitstream filters for all to 'noise'. The <a href="https://www.ffmpeg.org/ffmpeg-bitstream-filters.html#noise">noise filter</a> intentionally damages the contents of packets without damaging the container</dd>
+            <dt>-c copy</dt><dd>use stream copy mode to re-mux instead of re-encode</dd>
+            <dt><i>output_file</i>.dv</dt><dd>path, name and extension of the output DV file</dd>
+          </dl>
+          <p class="link"></p>
+        </div>
+      </div>
+    </div>
+  </div>
+  <!-- ends Broken DV -->
+
   <!-- Sine wave -->
   <span data-toggle="modal" data-target="#sine_wave"><button type="button" class="btn btn-default" data-toggle="tooltip" data-placement="bottom" title="Generate a test audio file playing a sine wave">Sine wave</button></span>
   <div id="sine_wave" class="modal fade" tabindex="-1" role="dialog">