/// ------------------------------------------------------------------------------------
 private void LoadFile()
 {
     if (_mediaFileQueue[0].Length > 0f)
     {
         PlayerViewModel.LoadFile(_mediaFileQueue[0].MediaFile, _mediaFileQueue[0].Start, _mediaFileQueue[0].Length);
     }
     else
     {
         PlayerViewModel.LoadFile(_mediaFileQueue[0].MediaFile);
         _mediaFileQueue[0].Length = _mediaFileQueue[0].End = PlayerViewModel.GetTotalMediaDuration();
     }
 }