I'm going to show you how to take full advantage of all practical and effective video quality enhancement features of WonderFox HD Video Converter Factory Pro to make video clearer. It works significantly in three situations: 1. Blurry videos that come from a poor condition while recording (shaking, dim light), but the recording device is excellent; 2. Videos of restricted resolution (SD videos especially); 3. Compressed videos – Like some video you downloaded from YouTube, it was supposed to be HD quality, but it was automatically compressed by YouTube while uploading, which makes it blurry on your HD screen.