I imagine that even if the RIAA demanded this info, Apple would have no choice but to defend it vehemently in court. The PR backlash you'd get from backstabbing

I imagine that even if the RIAA demanded this info, Apple would have no choice but to defend it vehemently in court. The PR backlash you'd get from backstabbing the vast majority of your paying customers cannot be overstated. And when I say "vast majority", I'm referring to the fact that even ripping a mix CD a friend made you or copying an album or 2 off a thumb drive constitutes piracy. Of course, none of this matters because it's completely impossible for Apple to compile this data reliably.