How to Convert DVD to iPhone 4/4S with Free Software(this situation will be the best)?

My iphone has been bouht for a long time. This year I bought the 5S and sent the old version to my father.However, we all don't know how can we transfer our dvds at house to iphone 4s supported format. Any one can tell me? If everything is free, that will be the best.

This article lists some free dvd ripper software, you can choose one.
http://lifehacker.com/...ping-tools

  • Will you help look for easy way to convert DVD to iPhone 5? Frankly, I'm not an iPhone fan. But, its 4-inch Retina display with 16:9 aspect ratio and 1136 x 640 resolution, as well as dual-core totally fascinates me. What I want to do most with iPhone 5 is watching my DVD collections on it. The question is how to transfer my DVD movies to iPhone 5? Which program do I need? Do you have any idea? By the way, my budget is a little bit tight recently after buying iPhone 5, so free program is the best.
  • Will it be able to convert DVD to iPhone 5S faster than ever before? When I get an iPhone 5S, I find this cellphone is a bit thinner and bigger than iPhone 4S which I used before. There's a problem when I want to watch DVD movie with iPhone 5s, because I can't connect an external DVD Drive. In fact, I was also very curious about whether it will be able to convert DVD to iPhone 5S faster than ever before. Can any guys tell me about this question?
  • What would be a good computer software to edit dvd, iPhone film etc for a kicker/punter? Something that you could have the different yards pop up for each kick on a running film. Also to have a digital clock that could show hangtime for punts and kickoffs.
  • What software is the quickest to convert video files to iphone format? I've been using any video converter and free video to iphone converter. Both very slow, it takes up to an hour to convert a 20 mins.wmv or.avi. Are there any faster alternatives? And does that depend on whether I choose to convert to iphone 4 or iphone 5 format? I've tried the latter so can it be that it would be quicker for iphone 4?