help!Tell me why

[Vista]

My demo can't work well.
I can't hear the sound from my cd-rom.
Please tell me why.Thanks.

//code here
function on_notify(flag)
{
* *m.notify = false;
* *//m.command = "close";
* *trace("flag : "+flag);
}

m = new MCI;


m.deviceType = "cdaudio";
m.wait = true;
m.command = "open";
if (m.error) trace(m.errorMsg);

m.notify = true;
m.onNotify = on_notify;

m.left = 0;
m.top = 0;
m.width = 200;
m.height = 100;
m.timeFormat = 10;
m.from = MCI.makeTMSF(15, 0, 0, 0);
m.to = MCI.makeTMSF(16, 0, 0, 0);
m.command = "play";

Furthermore I can not see the playing windows embedded.