so i downloaded handbrake a couple of weeks ago and tried to rip a couple of dvd's. The first one worked but the videos were just short 5 minute vids. So next i tried to rip a full length movie. My computer says that it was successful. I try and watch it, the first 5 minutes turns out fine the rest of the movie is all blocky and choppy with no sound. you can't even tell what is going on. Has anyone else had this problem? does anyone know how to fix this?