Click to play sound problem

Hi, I am trying to play a sound file when the user clicks on a puzzle piece and drags it into place. I have the puzzle working and had the sound working in my prototype but when I built the final the sound isn't working. I used a code snippet to click to play/stop sound and I get the following error every time. Though the prototype still works and the code is exactly the same so I am wondering if there is some other problem I am not considering. For instance. I used MP3 in the prototype and WAV files in the final (but I did try a MP3 and that didn't play either - same error).

I would also like to block the user from clicking on another piece until the audio is done playing. It is an educational program and I would like them to hear each audio.

Any ideas? And thanks in advance for any help you can give.

Error #2044: Unhandled IOErrorEvent:. text=Error #2032: Stream Error.

  at C2GFinalInProgressDemo2_BuildaBody_fla::MainTimeline/fl_ClickToPlayStopSound_8()[C2GFinalInProgressDemo2_BuildaBody_fla.MainTimeline::frame171:190]

/* Click to Play/Stop Sound

Clicking on the symbol instance plays the specified sound.

Clicking on the symbol instance a second time stops the sound.

Instructions:

1. Replace "http://www.helpexamples.com/flash/sound/song1.mp3" below with the desired URL address of your sound file. Keep the quotation marks ("").

*/

Digestive.addEventListener(MouseEvent.CLICK, fl_ClickToPlayStopSound_8);

var fl_SC_8:SoundChannel;

//This variable keeps track of whether you want to play or stop the sound

var fl_ToPlay_8:Boolean = true;

function fl_ClickToPlayStopSound_8(evt:MouseEvent):void

{

  if(fl_ToPlay_8)

  {

  var s:Sound = new Sound(new URLRequest("soundDigestive.wav"));

  fl_SC_8 = s.play();

  }

  else

  {

  fl_SC_8.stop();

  }

  fl_ToPlay_8 = !fl_ToPlay_8;

}