Probably one of the best summaries of why DRM is a bad idea:
“DRM has absolutely nothing to do with protecting content, it is about protecting the wallets of major corporations. The funny thing is they aren’t protecting it from you, they are protecting it from each other.
Let’s look at the shattering success of every DRM solution to date. Every single one has failed. The score card is hundreds if not thousands against, zero for. Name me one song, movie or software title that is DRM infected that has not found it’s way to the net within a week of release, usually long before release. There are none. To protect content, DRM is an abject and total failure, and will continue to be.”
Go read the rest – excellent.