The most recent 'Thinking Allowed' programme on BBC Radio 4 had an item discussing copyright.
It's available on the BBC's Listen Again service - if it's legally available in your area
"INTELLECTUAL PROPERTY LAW
Is copyright killing creativity? James Boyle is William Neal Reynolds Professor of Law at Duke Law School, North Carolina and the author of a new book The Public Domain: Enclosing the Commons of the Mind
explaining the uneasy relationship between culture, copyright laws and creativity."
(The item starts about 18 mins in.)