I've got a retina macbook pro. (with the external dvd drive) I can rip DVDs with handbrake in anywhere from 9 minutes to 45 minutes. I'm not sure why some DVDs

I've got a retina macbook pro. (with the external dvd drive) I can rip DVDs with handbrake in anywhere from 9 minutes to 45 minutes. I'm not sure why some DVDs of the same relative length require more time than others.