Handbrake problems - Scrambled Video

I've been ripping my movie collection for the past 1-2 years, so I can watch my DVD's on my apple tv. I've never had any problems with Handbrake. However, every movie I try to rip has scrambled video. I'm not seeing any errors. I look in the window activity, no errors. I have no idea what is causing the scrambled video or how to fix it and it's driving me crazy! I've tried reinstalling handbrake, no success, same look. I've tried various DVD's, same problem. Would greatly appreciate any help. Here's a screen shot of what the movies look like:

Thanks in advance! :eek: