“Don’t worry, this isn’t a costly venture. The only thing you might need to purchase (if you don’t already have one built-in) is a DVD drive,” Jacob Penderworth writes for Mactuts+.
“My recommendation is the AmazonBasics USB 2.0 external DVD Drive [US$31.64], because it’s simple, affordable, reliable, and easy to use,” Penderworth writes. “Alternatively, you can use the Remote Disc feature to share one Mac’s optical drive with another, but that’s only if you have an older iMac or MacBook Pro.”
Penderworth writes, “Once you’ve worked out what DVD drive you’ll be using, it’s time to get some software. For this tutorial, we’ll be using a combination of HandBrake (for transferring), VLC (for decoding), and MetaZ (for tagging). All three are freeware…”
Full “how to” here.