Android How to save media player mp3 url when buffer completed

i have media player class.

Is possible to save mp3 track when buffer Player completed?

 private OnBufferingUpdateListener seekBarBufferingUpdateListener = new OnBufferingUpdateListener() {

    @Override
    public void onBufferingUpdate(MediaPlayer mp, int percent) {

        if (percent == 100)
             mp.getCompleteBufferMp3And SaveToSdCard(); // <--
    }
};