public void InitCombo()
 {
     try
     {
         cboFileFormat.ItemsSource  = MovieServices.GetFormats();
         cboAspectRatio.ItemsSource = MovieServices.GetAspectRatios();
     }
     catch (Exception ex)
     {
         Util.LogException(ex);
         new MessageBoxYesNo(ex.Message, false, true).ShowDialog();
     }
 }