WWW Class doesn't work under MacOSX build

Dear Unity community,

My music team makes the soundtracks for my game, and they need MacOSX build, so then don't have to delve into the code, and can load their own song. I use the WWW function to load the externa WAV's.

It works perfectly under Windows build, but it doesn't seem to work in the mac build. How to fix this?
this is my code:

public AudioClip audio1;
public AudioClip audio2;
public AudioClip audio3;

void Awake(){

var www = new WWW ("file://" + Application.dataPath.Substring (0, Application.dataPath.LastIndexOf ("/")) + "/music1.wav");

var www2 = new WWW ("file://" + Application.dataPath.Substring (0, Application.dataPath.LastIndexOf ("/")) + "/music2.wav");

var www3 = new WWW ("file://" + Application.dataPath.Substring (0, Application.dataPath.LastIndexOf ("/")) + "/music3.wav");


audio1 = www.GetAudioClip(false,false);
audio2 = www2.GetAudioClip(false,false);
audio3 = www3.GetAudioClip(false,false);

}

 

Have you taken into account that `Application.dataPath` returns different values depending on the platform?