Opinion 1: Recording Industry Association of America
http://www.riaa.com/faq.php

Opinion 2: Recording Industry Association of America


https://www.riaa.com/physicalpiracy.php?content_selector=What-is-Online-Piracy

Opinion 3: Rick Falkvinge, founder of Swedish music company

http://www.cnn.com/2012/09/25/tech/mobile-society-falkvinge-pirate-party/

Opinion 4: Time Magazine

http://entertainment.time.com/2013/03/21/illegal-music-downloads-not-hurting-industry-study-claims/print/