_transcoder.show();
_transcoder.setVisible(true);
    private void transcoderMenuItemActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_transcoderMenuItemActionPerformed        if (_transcoder == null) {            _transcoder = new TranscoderFrame();        }        _transcoder.show();    }//GEN-LAST:event_transcoderMenuItemActionPerformed