Actually, on two DVDs so far, it works flawlessly, and the images are playable in Front Row, which is pretty cool. But each image does take up 7gb, and while the quality is excellent, Handbrake creates playable images of 1/10 the size with an acceptable deterioration in quality for casual viewing. I'll keep trying this, because it seems well done, and it might be nice to use on the home system where it preserves all aspects of the DVD.