ActionScript 3.0 :: Stop Looped FLV With Button?

I want to create a SWF with 10 embedded FLVs as they are smaller file sizes than embedding the video in the main FLA timeline. I have imported using Import Video>Load external video with playback component.

For each of these FLVs i have created separate Movie Clips and placed each Movie Clip in a scene with forward and back buttons.

I need the FLVs to loop when played so I used this code in frame 1 of the Movie Clip:

Code:
import fl.video.VideoEvent;
SWFfilm01.addEventListener(VideoEvent.COMPLETE, videoFinished);
function videoFinished(event:Event){
SWFfilm01.play();
};

The issue I'm having is that when the Next button is pressed and the playhead goes to the next scene, the sound from the previous scene pauses for a moment then continues to play through.

This is the code that I have at the moment in the first frame of the scene:

Code:
stop();
invis01.addEventListener(MouseEvent.CLICK,play_S2);
function play_S2(event:MouseEvent):void {
SoundMixer.stopAll();

[Code].....