I have an iPad with only WiFi capability, and we're going on a road trip this weekend. I'd like to watch a select movie or two from my own library on the iPad, but the ones I want to watch don't come with digital versions (they're somewhat older movies). I know that Walmart can digitize your DVDs for you, but from what I understand they can only be watched via the Internet? This wouldn't do me any good, since I'll be driving down the Interstate. Is there a way to store a DVD or two on my iPad? I have the 16 Gb version.