How to put DVD's/BluRay's on my iPhone 4S?

I have a Sony Vaio (2008) and the current version of iTunes is on it. How do I download a DVD/BluRay to the Vaio and then move it over to iTunes so I can put it on my 4S?

I suppose the first things is converting DVD/Blu-ray movies to iPhone 4S compatible MP4 or M4V video format. 4Videosoft Video Converter Ultimate is very easy to rip DVD/BD disc to any video/audio format as you like. After that, you can put the converted videos to iPhone 4S.