I don't know much about copy protections. Wouldn't it be a good idea to make a wiki page listing some basic known facts about the copy protections we know about? Things like how they work, how to identify them and how to deal with them when dumping.

Hi, I'm all for it!

A few pages are already on the Wiki, you can find them here: http://wiki.redump.org/index.php?title=IBM_PC
But obviously, it would be great to have some reliable info on the other forms of protection out there.