Pour ripper les DVD, j'utilise depuis quelques années : dvd shrink
Très bon Ripper.

Jai trouver le logiciel WinX free Dvd to iPhone Ripper.il est simple et efficace.gratuit ,jai aussi free DVD ripper,plus lent et le developpement est arreter

You may try this software, my friends recommend it to me, it's not free, but it's easy to use and works pretty well for me, I think it well worth the money. If you are interested in it, here is a step by step guide about how to use it: http://www.besthdsoft.com/Guide/blurayripperguide.html
1. Open Blu-ray Ripper, Click "Add" button to add video files.
2. Click "Profile" drop-down list to choose output format .
3. Click "Start' button, then wait a moment you'll get the new format video file.
Hope it helps. Contact me if you have any other question.
You can download it here: http://www.besthdsoft.com/best-hd-blu-ray-ripper.html