You could load up with this:
<param name="FlashVars" value="id=543330">
AS3 (Might Be Wrong)
var PlayThis:URLLoader = new URLLoader();
PlayThis.dataFormat=URLLoaderDataFormat.VARIABLES;
PlayThis.addEventListener(Event.COMPLETE, onLoaded);
function onLoaded(e:Event):void {
trace(e.target.data.MpUrl);
}
PlayThis.load(new URLRequest("loader.php?id="+id));
And the PHP could be mysql or just a simple php document:
<?php
switch ($_REQUEST['id']){
case "543330":
echo "&MpUrl=http://mp3host.com/play.mp3&";
exit();
break;
case "543331":
echo "&MpUrl=http://mp3host.com/play.mp3&";
exit();
break;
case "543332":
echo "&MpUrl=http://mp3host.com/play.mp3&";
exit();
break;
}
?>