Sound continues when I removeChild?

programming flash
1

I’ve made an application in AS3 which contains 5 buttons who each loads a different application (SWF) that contains embedded video. I’ve made this very simple with a loader.

var ldr:Loader;
[…]
addChild(ldr);

When I add the child ldr, I also add a button with an eventListner that will remove the child when clicked, by calling this function…

private function removeSWF(e:MouseEvent):void {
removeChild(ldr);
}

and it almost works… the SWF is removed from the stage, but the sound continues to play.

How do i do to stop the sound?

Hope you understand my question…

and thanks for a great Forum…