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).
See with books, that's where out gets complicated. I don't agree that reading part of the book is a problem, but the whole book does count as piracy to me. I do admit I don't know where the line is crossed. It's great the way libraries skirt around this problem and I don't really know how that fits in the broader scheme.
Perhaps another great idea is a magazine where there's really only one or two articles of interest - in my mind, have at it and consume what's of interest without shelling out for the whole thing (this is a lot like time-shifting, where recording content played on the air at a certain but inconvenient time is absolutely fair use).
Format shifting via a 3d scanner is fine but uploading to for others is where it's problematic - personal use has always abominated various liberties, I felt.
Great thought experiments, cheers