DVD to AVI tool problem?

[JessibonLarry]

I have bought some DVD discs, but it is not convenient and safe for me to store them, so I hope to find a DVD to AVI tool so that I can copy and backup these DVDs to my laptop and cell phone. Anyone can help me find a professional DVD to AVI tool that can help me convert DVD to AVI with less video and audio quality loss. Thanks in advance.

 

[IfferlonHoofu]

For DVD to AVI tool, you can try WonderFox DVD Ripper
it works good for me
some other users recommended it to me before
here is the link of the software
http://www.videoconverterfactory.com/dvd-ripper/
you can just download it and have a try