OpenFileDialog openFileDialog1 = new OpenFileDialog();

            openFileDialog1.InitialDirectory = "c:\\";
            openFileDialog1.Filter = "Fichiers musique (*.mp3)|*.mp3|Fichiers Ogg (*.ogg)|*.ogg|Fichiers WMA (*.wma)|*.wma";
            openFileDialog1.FilterIndex = 2;
            openFileDialog1.RestoreDirectory = true;
            openFileDialog1.Multiselect = true;

            if (openFileDialog1.ShowDialog() == DialogResult.OK)
            {
                if ((myStream = openFileDialog1.OpenFile()) != null)
                {
                    // Insert code to read the stream here.




                    myStream.Close();
                }
            }