Top-Down P2P
In reality, the number of files on the Net ripped from store-bought CDs, DVDs, and videogames is statistically negligible. People don’t share what they buy; they share what is already being shared—the countless descendants of a single “Adam and Eve” file. Even this is probably stolen; pirates have infiltrated the entertainment industry and usually obtain and rip content long before the public ever has a chance to buy it.