So it's Digital Restrictions Management then

If I buy a paperback book in a bookstore, I can read it anywhere I like; when I've finished with it I can give it away to Oxfam, lend it to a friend or sell it on eBay. But if I buy the same book in electronic format, it will come with DRM or licensing restrictions which prohibit all of these things. So let us have no more cant about DRM being about rights. It is in fact about restrictions.

Link: John Naughton: Why Apple wants freedom to cost a little bit more | Business | The Observer