title: How to get Flex SWFLoader unloadAndStop to unload sound also?
body: <pre><code>public var swfLoader:SWFLoader = new SWFLoader();
  
  [Embed(source="/some/file1.swf")]
  public var file1:Class;
  
  [Embed(source="/some/file2.swf")]
  public var file2:Class;
  </code></pre>
  
  <p>then I do:</p>
  
  <pre><code>swfLoader.load(file1);
  </code></pre>
  
  <p>Later on:</p>
  
  <pre><code>swfLoader.unloadAndStop(true);
  </code></pre>
  
  <p>which unloads the video, but not the sound! So I add in</p>
  
  <pre><code>SoundMixer.stopAll();
  </code></pre>
  
  <p>Which is ok, for a while. Later on, I do: </p>
  
  <pre><code>swfLoader.load(file2);
  </code></pre>
  
  <p>And eventually, while watching file2, file1's audio will start playing in the background over file2's audio, with no way to stop it! What is the proper way to stop the audio of file1? The way I keep seeing is use unloadAndStop() which I am using. Unless I have to create a new swfLoader object each time? </p>
  
  <p>As per Konrad's answer below, I should stop playing the sound in cleanup events, such as REMOVED_FROM_STAGE, however, how can I stop playing the sound on a swf file that is loaded with a SWFLoader? I don't see an obvious way to do that. </p>