www.makemkv.com

So glad someone responded with a link that no longer works rather than answering the guy's question
(in short, you can use the backup option in MakeMKV).

So, you see, there's this thing called "instructions", that when actually read, will tell you how to use a tool and if there are any other features a tool may have....

There're also things known as RESPONSES WITH MORE THAN THREE CHARACTERS and a concept known as NOT CHANGING BASIC GUI ...