Gaps in external MP3s

I read on Macromedia TechNotes, that there is a bug with gaps in MP3 audio, and i know about the onSoundComplete problems with it being aligned to 2048 samples or something. So i tried to load an external mp3 using this code:

//loop = a filename

MySound = new Sound();
MySound.loadSound("loops/" + loop + ".mp3",false)
MySound.onLoad = function(){
MySound.start(0,9999);
}

That still makes gaps at the end of each loop.
I tried the following code:

MySound = new Sound();
MySound.attachSound("1");
MySound.start(0,9999);

With mp3s and wavs. The mp3s had gaps and the wavs didnt, even though i exported all sounds as MP3 in the flash export setting, as the technote instructed.

But i wanted to be able to go mysound.swf?loop=sound
and it would work... but the loadSound doesnt work with Wavs, nor am i using wavs for internet streaming....

any ideas?

Macromedia Flash MX 2004 Professional