The following tutorial is going to show you how to rip DVDs to iPad compatible video/audio files and put DVD movies onto Apple iPad.
Step 1: Start the Cucusoft DVD to iPad Converter either through the icon on the desktop, or through the “Start” menu in windows. The main program window will open, displaying the basic conversion options.
Step 2: Insert a DVD movie into the DVD-ROM Drive of your computer. Press the button labeled “Open DVD”. Select the DVD videos which you want to convert for your iPad.

Step 3: Select the format of the video you would like to create from the “Profile” menu, which is located on the right side of the window. There will be several formats listed, and the choice you make will determine the quality and the size of the resulting video, as well as its compatibility with iPad.
Step 4: Click the Convert button, and a new window will open, with conversion options for the current movie.

The trail version of Cucusoft DVD to iPad Converter will put a wartermark on your video, but you could download it and just have a try.

OK, do you know how to rip DVD to iPad video format? I think the answer is yes. If you also want to convert video to iPad, You could click the link to see more details.