<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="vertical" backgroundColor="white"  viewSourceURL="srcview/index.html">    

    <mx:Script>
        <![CDATA[
            import mx.events.VideoEvent;
            import mx.controls.Alert;    

            private function doStateChange(evt:VideoEvent):void {
                switch (evt.currentTarget.state) {
                    case VideoEvent.CONNECTION_ERROR:
                        evt.currentTarget.visible = false;
                        Alert.show(evt.currentTarget.source, "Unable to connect to video");
                        break;
                }
            }
        ]]>
    </mx:Script>
    <mx:VideoDisplay source="http://blog.minidx.com/flash/video/404.flv" stateChange="doStateChange(event);" />    

</mx:Application>