Ripping is the extraction of digital content from a container, such as a CD, onto a new digital form and location. Originally, the term meant to extract the music from Commodore 64 games. Later, the term was applied to ripping WAV or MP3 files from digital audio CDs, and after that to the extraction of contents from any storage media, including DVD and Blu-ray discs, as well as the extraction of video game sprites.
If you need to rip a small shiny disc, this site can help.
If you have a question about video, DVD or Blu-Ray, it'll probably be answered here.

https://www.dvddemystified.com/dvdfaq.html
All the questions you thought you'd never ask about DVDs
https://forum.makemkv.com/forum/viewtopic.php?f=5&t=1053
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