Greg Newby wrote:
But as Robert mentioned, that doesn't change that the public domain content is still public domain...no matter how much value has been added through scanning, OCR, proofreading, etc. What happens if such content mysterioulsy, untraceably extracts itself from DP and becomes available elsewhere? Well, it's still public domain.
But you would sue them for trespass, not for copyright infringement.
PS: Over the years, I've been involved in various efforts to bring legal remedies to online incidents. It is very hard to do, especially when there is little or no money involved. Doubly-especially if any of the actors are in different countries. Robert's emphasis on technical measures, versus more legalistic ones, is more likely to give satisfaction.
Amazon would be an US company though. And sueing Amazon would bring some interesting facts to the public attention as to the provenience of some material they DRM. -- Marcello Perathoner webmaster@gutenberg.org