Video encoding - Whats the best method

Greetings all, I have a video question for the masses. I have a lot of Disney movies on DVD that I want to be able to stream to my ATV (since some you can no longer buy) and I want the best quality. I have purchased DVD ripper from Xilisoft and it does offer ATV as a video source, but is that the best available? I’ve seen mentions of using .iso files but what application would you use to rip it and what settings are needed? DVD ripper has tons of “advanced” options which I have no idea what I’m doing by setting any of them.

Thanks!
Richard

ATV 2, 4.4.4 untethered / ATV Black 1.1.1