Handbrake is an excellent freeware program that will transcode about any video format. As mentioned, the output format is pretty much limited to Mpeg-4. Handbrake will not strip copy protection without adding a file called "libdvdcss.dll".
Handbrake download:
https://handbrake.fr/rotation.php?file=HandBrake-1.5.1-x86_64-Win_GUI.exelibdvdcss.dll download:
https://github.com/allienx/libdvdcss-dll/raw/main/1.4.3/64-bit/libdvdcss-2.dllAnother freeware program for converting video is Vidcoder. It uses Handbrake components and simplifies the process a bit. It also needs the "libdvdcss-2.dll" file to strip copy protection.
Vidcoder download here:
https://github.com/RandomEngy/VidCoder/releases/download/v7.15/VidCoder-7.15.exeOnce you get the DVD ripped you will need to copy the resulting file to your tablet.
I suggest installing VLC video player on your tablet which will play about any format of video. Go to Google Store to get VLC.