Guide: How to Convert DVD to AVI with DVD to AVI Converter?
Tips: If you are a Mac user, you can try the DVD Ripper for Mac.
Preparation: Free download the DVD to AVI Ripper, and install it, and then start the converter software.
Step 1: Add DVD
Insert DVD into DVD-ROM, and then press the "Load DVD" button on the toolbar to load DVD into the program.

Step 2: Set output format and output folder
Choose AVI as the output format from "Profile" -> "Common Video".
Click the "Browse..." button to set the root directory for the converted files.

Step 3: Start converting DVD to AVI
When the above settings are set up all right, just click the "Start" button to start the conversion.

That's the guide about how to convert DVD to AVI, sincerely hope it can help you a lot.