To play video and again in reverse

convert the timeline to a movieclip (eg, flv_mc), attach a stop() to its first frame and use:

this.addEventListener(Event.ENTER_FRAME,playF);

function playF(e:Event):void{

flv_mc.nextFrame();

if(flv_mc.currentFrame==flv_mc.totalFrames){

this.removeEventListener(Event.ENTER_FRAME,playF);

this.addEventListener(Event.ENTER_FRAME,reverseF);

}

}

function reverseF(e:Event):void{

flv_mc.prevFrame();

if(flv_mc.currentFrame==1){

this.removeEventListener(Event.ENTER_FRAME,reverseF);

this.addEventListener(Event.ENTER_FRAME,playF);

}

}