Stop sounds causes flv to stop too

[BillyBobBongo]

Hey Hey!

Got a minor issue that I just can't seem to figure out. I've added piece of background music and created a simple piece of script to stop and start the music, should it irritate the user.

All works fine, however when I'm playing an flv (imported to stage and streamed) the stop function causes the flv to stop playing. It makes no sense to me.

Here's the code for the variable

var themeSound:Sound = new Sound();
themeSound.attachSound("soundtrack")

and the code for the On the button

on(release){
	with(tracks){
		gotoAndStop('on')
	themeSound.start();
	audiofx_state = 1;
	}
}

and the code for the Off button

on(release){
	with(tracks){
		gotoAndStop('off')
	themeSound.stop();
	audiofx_state = 0;
	}
}

The audiofx_state I'm using to deactivate the stop and start buttons as I have a small movie clip that changes text from on to off etc.

So as you can see, nothing complicated here. I've never tried to do this before and any help would be appreciated.

**EDIT**

I work fast and found a way around this problem, but I'd still like to know why the way above doesn't work.

To get around the problem I loaded the mp3 file for the background music from and external source rather than the library.

var themeSound:Sound = new Sound();
themeSound.loadSound("sounds/theme.mp3",true);
themeSound.setVolume(20);
themeSound.stop();

on(release){
	if (audiofx_state == 0){
		with(tracks){
		gotoAndStop('on')
	soundStarted = !soundStarted;
	audiofx_state = 1;
	}
	themeSound.start();
	}
}

on (release) {
	if (audiofx_state == 1)
	{
		with (tracks)
		{
			gotoAndStop('off');
			audiofx_state = 0;
		}
				themeSound.stop();
	}
}