Protecting an eBook on CD

[nanobit]

thank you guys! but most of those apps are 2000-3000 dollars; that means the author should sell 600 of his product to afford it (each ebook is about 5$). btw, the most effective way of protection with those programs is through internet activation which as I mentioned requires a dedicated server.
I'd like to stick to the plan which the CD itself cannot be copied at all. If I find anything I'll share it with you. or maybe you have something...