http://www.amazon.com/Nineteen-Eighty-Four/dp/B002A9JO9W
So, it looks to me like this was a case of a publisher illegally distributing a book to which they had no license. As an analogy, think of people who buy a bootleg DVD from a flea market while traveling overseas, only to discover it won't play in their region-locked DVD player at home. Yes, it sucks that DRM prevented them from using media they thought they had bought, but they also knew perfectly well that they were getting a deal that was just a little too good to be true.