Spoiler Thread: Avengers Infinity War

It's a slip of paper with a code that you can renew. A lot of times, you'll get to choose where to renew: VUDU, Google Video, iTunes, Amazon Video, Disney/Movies Anywhere, etc. Most Blu-rays come with digital codes! Go through you collection, pull all the slips, then sit down with a beer and cash 'em all in.

I've never actually bought a Bluray, so that's new to me. I always watch with Netflix. I'm intrigued though.