undefined, ясно.
А куда эти фрагменты - в коде добавлять ?
Я добавил их и что-то не работает.

Код AS1/AS2:
import flash.media.SoundTransform;
stage.scaleMode = StageScaleMode.NO_SCALE;
stage.align = StageAlign.TOP_LEFT;
private function update(e:Event = null):void {
container.scaleX = container.scaleY = 1;
var scale:Number=Math.min(stage.stageWidth /container.width,stage.stageHeight/container.height);
container.scaleX = container.scaleY = scale;
container.x = stage.stageWidth * 0.5 - container.width * 0.5;
container.y = stage.stageHeight* 0.5 - container.height * 0.5;
}
var myVideo:Video = new Video();
myVideo.height = 537.6;
myVideo.width = 720.6;
addChild(myVideo);
var netConnection:NetConnection = new NetConnection();
netConnection.connect(null);
var myStream:NetStream = new NetStream(netConnection);
myStream.play("video/1.mp4");
myStream.soundTransform = new SoundTransform(0);
myStream.addEventListener(AsyncErrorEvent.ASYNC_ERROR, function (event:AsyncErrorEvent):void {});
myStream.addEventListener(NetStatusEvent.NET_STATUS, goAgain);
myVideo.attachNetStream(myStream);
function goAgain (event:NetStatusEvent): void
{
if(event.info.code == "NetStream.Play.Start")
myStream.seek(20);
if(event.info.code == "NetStream.Play.Stop")
myStream.seek(0);
}