Emulator creators are often sued by Nintendo and Sony. I don't know about Microsoft. I know Nintendo wins most of their court battles against emulator and ROM sites, and Sony tends to buy out their loses.
Technically, you
can make virtual back-ups of your system and games,
but game and system developers are making it harder and harder to do so. They rather prefer you not make back-ups =/
From
observation, I've noticed that BattleForusms, in general, will allow you to use names of emulators and the general name Kazaa and BitTorrent (but not specific BitTorrent sites) and
never link to them! Then again =/ I guess that's what
Google is for. I don't recommend you post anything as a test, though :rolleyes We don't want you getting banned based on anything but the moderator's word.