There are organizations, such as the Canadian recording industry, such as the entertainment software industry, film companies, and many others--it's a long list--that have specifically said, “You know what? Allow the market to work. If you put these measures in place, it doesn't mean that we have to use them. It means that we can use protection measures if we choose, to dictate how copying can take place.”
In fact, it would work for music just fine. If we set in place a market whereby people actually pay for music rather than get it for free, as they do now, largely, we could then allow them to say that you can make a copy for a digital device or two copies for digital devices, and we'll lock it down after that.
Doesn't that seem like a reasonable and rational way to go about ensuring that copyright owners, the people who own the copyright, actually are extending a licence that allows them to make money and establish a market?