I need to rip some DVDs to files so I can watch them on my tablet without an internet connection. What tool do you suggest I use to create the video files? Although I'm probably as guilty as you are about creating copies of D.V.D.'s for my own personal use. I'm not a lawyer and I don't play one on T.V. and I do not know what the legal issues are involved in this case. Just be aware that you may or may be breaking the law when you make a copy of a D.V.D.
I have no idea but I certainly do it. The tool I use on my Mac is called Make MKV that is the letters. M K V. Make M.K.V is an application that runs on both Macs and P.C.'s and it takes a D.V.D. and takes each of the chapters or files on that D.V.D. and converts them into a format that you can play on a tablet or laptop. I find it very easy to use it's free and although there are many many options for doing this it's my tool of choice.
There are also other options you can look at on Windows or Macs but again, make MKV is currently free, easy to use and I highly recommend it. Given the video files that this program creates you'll need to move them to your device, your tablet, your phone, or your laptop and then find an application that can play the video files. A very common use for playing video files is the application called V L C which plays videos of almost any kind on almost any device - give it a check.