Steve Jobs applies a cluestick to the movie industry, during an analyst briefing:

"The biggest problem with downloading feature-length films through iTunes is bandwidth, it takes too long in US," he explained. He confirmed his belief that illegal digital sharing of movies is taking place, but stressed: "There is some evidence that shows people downloading movies illegally wouldn't have bought them anyway."

The main thing - which it looks like Jobs gets - is that you don't want a DRM scheme that makes things so obnoxious that people who would normally be willing to shell out money for content look for work-arounds. That's a lesson Sony is learning the hard way right now