Empty or Unloaded AudioClip before get it by www.GetAudioClip

since i have to load audio files to a AudioSource from a "Sounds" folder, in the same directory as the application .exe (PC), ive decided to make it by the www.GetAudioClip function. In the editor it works perfect, but when i compile the app, it doesnt work anymore. I have a gui button on the screen with some info of the AudioSource.clip (of an array of audio sources); it shows for example, the clip.loadState, wich is always "Unloaded" for some reason.

I dont know what im doing wrong, but i test many variations of the code... nothing works at runtime... an empty audio clip seems to be there in the audiosource, with just a name (that is provided by the script), without wave, time, etc.

Heres a part of the code i use.. if it is inapprehensible at some point, let me know it. Im sorry for mi bad english, as you can see somewhere in the code notes //i speak spanish.

I appreciate any feedback

 using UnityEngine;
 using System.Collections;
 using System.IO;
 
 public class POST : MonoBehaviour {
 
     public bool KbSelection = true;
     public AudioSource[] AllSources;
     public string[] dirs ;
     public string folderState = "Please select a folder";
     public int current;
     float GuiFxTime = 3;
     FileInfo[] info;

     void Start () {
         for (int cnt = 0; cnt < 88; cnt++) {
             gameObject.AddComponent<AudioSource> ();
         }
         AllSources = gameObject.GetComponents<AudioSource>();
     }
     
     void Update () {
         //llena la lista de directorios con la cantidad de carpetas que hay
         if (Directory.GetDirectories (Path.GetFullPath ("./Sounds")).Length != dirs.Length) {
             dirs = Directory.GetDirectories (Path.GetFullPath ("./Sounds"));
         }
         //renombra los items de la lista con su nombre solo en vez de su ruta completa
         for (int cnt = 0; cnt < Directory.GetDirectories ( Path.GetFullPath("./Sounds")).Length; cnt++) {
             dirs [cnt] = Path.GetFileName (Directory.GetDirectories (Path.GetFullPath ("./Sounds")) [cnt]);
         }
     }
 
     void OnGUI(){
         KBSEL ();
         //check the some data of first audioclip in AllSources, and play it (test)
         if (GUI.Button (new Rect (1110, 16, 100, 250), AllSources [0].clip.length.ToString () + "\n" + AllSources [0].clip.loadState.ToString () + "\n" + AllSources [0].clip.name)) {
             AllSources [0].Play ();
         }
     }
 
     void KBSEL(){
         //GUI FX
         if (GuiFxTime > 1) { GuiFxTime -= (Time.deltaTime)*10; }
         GUI.color = new Color (1.0f, 1.0f, 1.0f, 1/GuiFxTime );
         GUI.skin.box.alignment = TextAnchor.MiddleCenter;
         
         if (dirs.Length > 0) {
             //box used as "black faded background"
             GUI.Box (new Rect (-10, -10, Screen.width + 20, Screen.height + 20), "");
             //FOLDER SELECTION
             for (int cnt = 0; cnt < Directory.GetDirectories ( Path.GetFullPath("./Sounds")).Length; cnt++) {
                 if (GUI.Button (new Rect (10 + (((Screen.width - 20) / Directory.GetDirectories (Path.GetFullPath ("./Sounds")).Length) * cnt), 40, (Screen.width - 30) / Directory.GetDirectories (Path.GetFullPath ("./Sounds")).Length, 100),
                                 "Folder: " + dirs [cnt] +
                                 "\nWav clips: " +
                                 new DirectoryInfo (Directory.GetDirectories (Path.GetFullPath ("./Sounds")) [cnt]).GetFiles ("*.wav").Length +
                                 "\nOgg clips: " +
                                 new DirectoryInfo (Directory.GetDirectories (Path.GetFullPath ("./Sounds")) [cnt]).GetFiles ("*.ogg").Length)) {
                     //fill sound clips with the sounds on the selected folder
                     StartCoroutine(LoadClips(cnt));
                 }
             }
         } else {
             GUI.Box (new Rect (-10,-10,Screen.width +20, Screen.height +20), "Theres no sounds folders!");
         }
         
         //status label
         GUI.Label (new Rect (10, 10, Screen.width-20, 25), folderState, "box");
         
     }
 
     IEnumerator LoadClips(int cur){
         //folder have clips?
         if (new DirectoryInfo (Directory.GetDirectories (Path.GetFullPath ("./Sounds")) [cur]).GetFiles ("*.ogg").Length > 0) {
             //if is not the same folder currently load
             if(current != cur){
                 //fill "info"
                 info = new DirectoryInfo (Directory.GetDirectories (Path.GetFullPath ("./Sounds")) [cur]).GetFiles ("*.ogg");
                 //get the clips, and assign them on each audio source
                 for(int cnt = 0; cnt < info.Length; cnt++){
                     WWW www = new WWW ("file:///" + info[cnt]);
                     while(!www.isDone){
                         folderState = "Loading audio clips...";
                         yield return null;
                     }
                     yield return www;        //Ive tested with and without this
 
                     AudioClip aud = www.GetAudioClip(false); //Ive tested with www.audioClip, www.GetAudioClip(with all combinations of this 3 variables), and same with www.GetAudioClipCompressed
                     Debug.LogError( www.error);    //this is used to display the www.error in the console of the development build.. it returns the error "Couldnt open file /nameofthefile.ogg"
                     
                     aud.name = info[cnt].Name;    //to assign a name for each clip
                     AllSources [cnt].clip = aud;    //assign each clip to each audiosource (88 clips/sources)
                     
                     
                 }
                 KbSelection = !KbSelection;    //does nothing here... in the original displays the folder selection
                 current = cur;
             }else{
                 KbSelection = !KbSelection;
             }
             
             folderState = "Loaded Sounds Folder: " + dirs[current];    //label that shows current state
         } else {
             yield return null;
             folderState = "No playable audio clips on folder '" + dirs[cur] + "'";
         }        
     }
 }