Load Audio or Vedio files

  //Load Audio or Vedio files 
        private void btnLoadFile_Click(object sender, EventArgs e)
        {
            Startindex = 0;
            playnext = false;
            OpenFileDialog opnFileDlg = new OpenFileDialog();
            opnFileDlg.Multiselect = true;
            opnFileDlg.Filter = "(mp3,wav,mp4,mov,wmv,mpg,avi,3gp,flv)|*.mp3;*.wav;*.mp4;*.3gp;*.avi;*.mov;*.flv;*.wmv;*.mpg|all files|*.*";  
            if (opnFileDlg.ShowDialog() == DialogResult.OK)
            {
                FileName = opnFileDlg.SafeFileNames;
                FilePath = opnFileDlg.FileNames;
                for (int i = 0; i <= FileName.Length - 1; i++)
                {
                    listBox1.Items.Add(FileName[i]);
                }


                Startindex = 0;
                playfile(0);
            }
        }