Wow this has gotten confusing...so we're pretty sure its legal to backup a copy of a game you own...as long as you own it...
BUT its against forum rules to talk about how to do that because the forum rules specificly state
18. No Warez
Posting up and asking for illegal warez is strictly prohibited. This includes but is not limited to: ROMs, isos, and game cracks. Violation of this Rule will usually result anywhere from a Warning to a Ban, depending on the offence.
Cool...not illegal to do but illegal to make software that can do it...kind of the same thing with modchips...the modchips are illegal its the software thats on them that is