It doesn't matter if it's a CD, a Film, or manual with the instructions to build a spaceship. If you copy it, the original owner doesn't lose anything. If you don't copy it, the only one missing something (the experience) is YOU.
Enjoy!
Of course, if you happen to have some extra money for donations to creators, please do so. If you don't have that, try contributing with a review somewhere or recommending the content, spread the word. Piracy was shown to drive businesses in several occasions by independent and biased corps (trying to show the opposite).
Devil’s advocate: “If you copy it, the [original] owner doesn’t lose anything…”
They loose the right to distribute it or not distribute it to who they choose. As the owner, it’s technically their right to deny access to the work, and you are taking that right away from them.
I’m not a shill, and I am never going to be a customer of big media. If I can’t get it without charge, I’d rather go without. But, I am taking that right away from the owner. I sleep ok.