Software development: Streaming audio with Flash Media Server(RTMP):Reading rtmp MP3

Hello everybody,

I want to read a audio file mp3 by rtmp protocol (FLASH MEDIA SERVER)... streaming.

There is my first code before :
//---
__sound = new Sound();
var filename = "rtmp://vwwma.bnquebec.ca/vod2/0003403950.mp3";

play.onRelease = function(){
__sound.loadSound(filename, true);
}
stop.onRelease = function(){
__sound.stop();
}
//---

When I finish to read the Flash LiveDocs I modify my code as:
//---
import flash.media.Sound;
import flash.media.SoundLoaderContext;
import flash.net.URLRequest;

var s:Sound = new Sound();
var req:URLRequest = new URLRequest("rtmp://vwwma.bnquebec.ca/vod2/0003403950.mp3");
var context:SoundLoaderContext = new SoundLoaderContext(8000, true);
s.load(req, context);
s.play();
//---

Localy it's work but when I put my RTMP protocol, I'm still have this error: Erreur d'ouverture de l'URL 'rtmp://vwwma.bnquebec.ca/vod2/0003403950.mp3'
Error #2044: IOErrorEvent non pris en charge : text=Error #2032: Erreur de flux. at audio3_fla::MainTimeline/frame1()

Where is the problem? Thanks for your help?

Jzeel