Well, any DRM can be "broken". Worst case is, you photograph all pages and OCR them
The hardest to break are probably private/public key encrypted files with current encryption algorithms. But as DRM with film content, there is always the problem, when the content is decrypted to be viewed. There you would need hardware which leaves you no way to grab the content during that time.
And i personally do not really care, if i break the law, when i read a downloaded book on en ereader, which i have bought as a paperbook version. This is just pointing out, how ridiculous laws can be.
Have you ever thought about a musicion, who just wants their music in vynil? If they are good and people like them ... well, but you are right, it is their right to do as they please.
But on the other hand, what if in a democracy, the majority would vote for a law, that forces all authors to publish their books for free? That would be even more ridiculous laws. Well, i am overdoing it, right?
So if you think the artistic right should be inpenetrable, what, if JKR would want us to read the book only with blue light in a cellar? Ok, i am getting carried away here.
I think that the fear of ebooks and piracy of content is soo great, and soo unrealistic. Otherwise, Microsoft would be broke. But the market for ebooks is too small at the moment to have any impact on the publishers. But over time it will grow, and hopefully they will start with better decisions than the music industry.