public void AddAudio(string name, string URL, int user, string genre)
        {
            Audio a = new Audio();

            a.audioname = name;
            a.audioURL  = URL;
            a.userID    = user;

            if (string.IsNullOrEmpty(URL) == false)
            {
                a.audioURL = URL;
            }

            mr.AddAudio(a);
        }