NetStream.Play.StreamNotFound when connecting to my AMS

Question

When I try and connect to the video on my AMS using Flash and AS3 I keep getting NetStream.PLay.StreamNotFound
The exact same video streams on the AMS home page.
I can stream from http://www.helpexamples.com/flash/video/cuepoints.flv but nothing from own server in flash.
Here is my code with the IP Address removed
import flash.media.Video;
var video:Video = new Video();
this.addChild(video);
var mNetConnection:NetConnection=new NetConnection();
mNetConnection.connect(null);
var mNetStream:NetStream=new NetStream(mNetConnection);      
video.attachNetStream(mNetStream);
mNetStream.play("rtmp://000.000.000.000/vod/mp4:sample1_1500kbps.f4v");      
mNetStream.client=this;
mNetStream.addEventListener(NetStatusEvent.NET_STATUS, onNetStreamStatusEvent);
mNetStream.addEventListener(SecurityErrorEvent.SECURITY_ERROR, securityErrorHandler);
function onNetStreamStatusEvent(event:NetStatusEvent):void
     if (event.info.code == "NetStream.Play.Start")
          trace("NetStream.Play.Start");      
     if (event.info.code == "NetStream.Play.StreamNotFound")
          trace("Video Not Found");      
     if (event.info.code == "NetStream.Buffer.Full")
function onMetaData(metadata:Object):void
function securityErrorHandler(event:SecurityErrorEvent):void {
     trace("securityErrorHandler: " + event);

Answer 1

Ok founbd a way to adjust the code to work with a f4v file over rtmp.
However I am still not able to stream from an f4m. Can someone help?
import flash.media.Video;
var nc:NetConnection = null;
var video:Video = null;
var mNetStream:NetStream = null;
video = new Video();
this.addChild(video);
nc=new NetConnection();
nc.addEventListener(NetStatusEvent.NET_STATUS, onNetStatus);
nc.connect("rtmp://000.000.000.000/vod");
nc.client = this;
function onNetStatus(event:NetStatusEvent):void
     //Trace the value of event.info.code
     trace( event.info.code );
     /*Check for a successful NetConnection, and if successful
     call publishCamera(), displayPublishingVideo(), and displayPlaybackVideo()*/
     if( event.info.code == "NetConnection.Connect.Success" )
          mNetStream=new NetStream(nc);      
          video.attachNetStream(mNetStream);
          mNetStream.play("mp4:sample1_1500kbps.f4v");      
          mNetStream.client=this;
          mNetStream.addEventListener(NetStatusEvent.NET_STATUS, onNetStreamStatusEvent);
          mNetStream.addEventListener(SecurityErrorEvent.SECURITY_ERROR, securityErrorHandler);
function onNetStreamStatusEvent(event:NetStatusEvent):void
     if (event.info.code == "NetStream.Play.Start")
          trace("NetStream.Play.Start");      
     if (event.info.code == "NetStream.Play.StreamNotFound")
          trace("Video Not Found");      
     if (event.info.code == "NetStream.Buffer.Full")
function onMetaData(metadata:Object):void
function securityErrorHandler(event:SecurityErrorEvent):void {
     trace("securityErrorHandler: " + event);