Streaming MP3 Problem

I’m having trouble understanding why these two links sound different, when they have the same source MP3 file:

www.fosod.com/music/start.mp3

and

www.fosod.com/music/soundfile.swf

Can you hear it? The second link sounds tinny, bitcrushed, compressed, digitized, cruddy–but it is merely an AS link to the first! The “soundfile.swf” is a Flash movie that uses the following Actionscript to stream the mp3 file “start.mp3” as a source:

var startSound = new Sound();
startSound.onLoad = function (loadedOK) {
	if(loadedOK) {
		startSound.start();
	}
}
startSound.loadSound("http://www.fosod.com/music/start.mp3", false);

Pretty simple and straightforward, right? Next, I have not modified the default AUDIO aspects of the export settings in Flash MX 2004 Pro AT ALL… so my export preferences are:

Version: Flash Player 6
Load Order: Bottom Up
ActionScript Version: ActionScript 1.0
Audio Stream: MP3, 16kbps, Mono
Audio Event: MP3, 16kbps, Mono
Override Audio Settings: Unchecked
Export Device Sounds: Unchecked

…so what the helk is the problem? I’ve made a zillion movies with sound before and I’ve never had this happen. It sounds like Flash is compressing the sound in real time, before it streams… for instance, if I “Test Movie” locally, the problem is the same. Weird stuff. On a side note, the last thing I did in Flash (unrelated file) was export to a .MOV file. Could that have somehow changed some audio export feature somewhere?

Please help!

-Fosod.