> Wisely, the study did not rely on music pirates' honesty. Researchers asked music buyers to prove that they had proof of purchase. I haven't read exactly how

> Wisely, the study did not rely on music pirates' honesty. Researchers asked music buyers to prove that they had proof of purchase. I haven't read exactly how this study was conducted, but it might be worth noting that some pirates would feel they have something to prove, and be more likely to comply with the request for proof.