I don’t know how I have missed this, but through a series of random interweb searching and clicking, I’ve come across this excellent documentary, “Good Copy Bad Copy“. It’s about the current state of copyright in North America mostly, the United States. It has some really great interviews with DJs and Mashup artists on one side, as well as business and record label type folk on the other. The issue of copyright is really presented well in this documentary and will hopefully get you thinking what your position on this will be.
It’s a compelling and troublesome issue that won’t be going away anytime soon.