sulla _root ...mi sembrava abbastanza chiaro :master:
codice:
var fd:Sound = new Sound();
fd.loadSound("prova.mp3", true);
this.onEnterFrame = function() {
	loa = fd.getBytesLoaded();
	tot = fd.getBytesTotal();
	perc = Math.round((loa/tot)*100);
	this.dis.text = perc+"  %";
	if (loa>=tot) {
		delete this.onEnterFrame;
	}
	trace(loa);
};
fd.onSoundComplete = function() {
	trace("caricamento completato");
	fd.start(0, 1);
};