Just a thought but if keeping lots of music on your xbox 360 or movies, or anything that could be deemed illegal it would be perfectly possible for xbox live to read your xbox HDD for say the MIAA and if it looks suspicious then investigate further. I don't think MS would accomplish from this because popularity would go down, but just think of your privacy, how private is it? Also on a side note Sony may take this approach with being involved in the music and video industry.