

A couple years ago I made a big project to rip all my DVDs.
Out of several hundred movies only 6 were unplayable. There didn’t seem to be a pattern to it either; age of the disc, wear or handling, big budget then current release or old movie slapped onto a disc in one of those cheap cardboard sleeves.
Out of my collection of TV shows on DVD, easily a quarter of the discs failed, and if one disc in a season of a show didn’t work most of them probably wouldn’t. Many had visible blotch marks in them. I figure they probably used a cheaper manufacturing process for TV shows where they were selling 3 to 6 discs rather than one, maybe two discs with a single movie on it.
Handbrake can handle DVDs directly; you’ll need Make MKV for Blu-Rays.