Help finding a paid DVD ripper/youtube converter so I can watch on Nexus 7?

Hi all,
I'm looking to buy software for windows 8.1 that will rip professional dvds (with drm I suppose) and youtube videos. The end goal is to have parts of my DVD collection and some longer youtube vids on my Nexus 7 (1st gen). I'll be puting the dvd files and youtube files on a jump drive and then using the media importer on my nexus (aka, I got the nexus part covered). Can anyone recommend some software that can rip dvd's and youtube vids to mp4. My budget is around $50 (but cheap and simple is always better). Thanks!