Watch DVDs on My iPhone 7

I wanna watch some DVDs on my iPhone and my friend says that I need to get rid of DVD copy protection first. Then I can view DVDs on my iPhone. I search from internet to find a useful ripper. But there are so many results and I don't know which one is good. Is there anyone who can give me some advice? Thanks a lot.

Welcome to iMore! Removing copyright protection is not something we support or discuss on this forum. You'll have to turn to other sources for help on this subject matter.