Step1: You should download the software WonderFox DVD Ripper and install it on your computer.
Step2: Put the DVD disk in the driver and load the DVD disk.
Step3: Choose the profile setting like output formats and click "START" button to launch the ripping process.
Step4: Open the the file folder to get the converted videos after finishing.

How to Rip DVD to FLV, Convert DVD Video to FLV