google music/gallery picking up videos made by my app
<p>This is the directory I'm saving media to:</p>

<pre><code>Environment.getExternalStorageDirectory() + "/MyAppDir/";
</code></pre>

<p>The media (they're video files) are being picked up by google music and by the gallery. The strange thing is that it's only a few files that get picked up. How can I prevent this?</p>
