Mitch Wagner's written a very lucid essay about DRM and file-sharing that strikes me as one of the better formulations of the problem that I've seen to date.
It's rather appropriate that the logo for Disney is a mouse, because The Walt Disney Company this week announced its intention to throw money down a rathole. Disney became the latest company to license Digital Rights Management (DRM) technology. DRM doesn't work and consumers don't want it, so of course it's very appealing to big business, who are also in a big rush to sell other, equally practical products, such as anchovy flavored ice cream and bicycles with square wheels.