well, why exactly DOESNT the government come in and shut down these abandonware sites? too much trouble for not big enough of a crime?
ashout: well, whatever. the guys who hold the rights arn't doing anything with it, and in all likelyhood most of those games will never be sold again anywhere other then ebay or amazon.
Paradoks: It's their rights. They can do with them whatever they want. Even nothing.
heck, i've heard of some of the game developers for these old games saying there games aren't going to be sold any more, and they'd rather have people play them then go into obscurity!
Dzsono: If you download, eg, an iso file, from an abandonware website the MD5 and SHA1, et al, will be the same as where you downloaded it from. I wouldn't be surprised if all abandonware sites just copied off each other. The same goes for all GOG games, as far as I know. I think everyone receives exact copies of the same game.
The safety net, I suppose, is that the rights holders probably don't have any money nor inclination to pursue a civil case.
and the governemnts reason for not wanting to pursue a criminal case is...