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.)