Copyright is literally the definition of “who has the rights to determine how copies are made.” If you were to believe most people who publish content on YouTube, you might think that copyright means authorship, but it does not.

When you purchase a movie on Blu-ray, you don’t own the film. You own a piece of plastic which represents a license to watch the film. But you can’t turn around, make copies, and start selling those copies without violating The film studios “right to determine how copies are made.“

The only difference between a physical Blu-ray (license) and a digital license is that digital license is revocable. It’s not fair. It isn’t just. But it’s literally part of the contract that you agreed to.

There’s a separate discussion to be had around “fair use.” Backing up stuff that you have paid money for does fall into “fair use,“ unless third-party encryption is involved. Because it is against the law to circumvent encryption. (Unless, of course, you’re the FBI.)

This is the only characteristic that separates ripping CDs from ripping DVDs — CDs missed the boat on encryption.

I’m not necessarily arguing for or against anything here other than to simply explain how it currently works (in the US, at least). There’s a separate discussion to be had about perpetual versus revocable licenses after money has been exchanged. Beyond that, there’s a discussion to be about how to protect the intellectual property of the things that you spent millions of dollars creating; and how that fares with the consumers of said intellectual property.

These latter discussions are far more nuanced than most Internet commenters are qualified to decide.

If you weren’t already, be very careful about which extensions you are installing.

That’s literally always true. For everything. Don’t install it if you don’t understand where it came from.