the wisest ever to post on a forum once explained that westerner hippie types think of karma as justice, but that's wrong; karma is cause and effect. "a glass falls off a table and breaks," he said. "did you sweep it to the ground in anger? did you bump it off carelessly in a moment of elation? did your cat push it off for cat reasons? is it good, or is it bad? is it punishment, or is it reward? is it justice?" justice is a story we tell ourselves, the natural world happens regardless of that.
anyway media piracy (in the extremely warped way we've come to view it, i.e. freely copying electronic media that others hold the commercial rights to) is also just something that happens, a natural effect of natural causes. participate in this cycle of life, or don't. but don't believe you're better or worse for doing or not doing it. you either did it or you didn't do it.