no offense to the thread starter but your a idiot if you even have to ask this question!! It is copyright material. SAme with movies and music it's all illegal unless you own it, but i do it anyways
Actually, its illegal even if you own the rom - making backups is Illegal.
Same for music and movies - it's illegal to make backups in most countries.
Not all though, but most.
Just because making backups of roms/music/movies is easy, doesn't mean its legal.
actually, according to U.S. law, you are entitled to a backup of any copyrighted material you own for personal use only. Downloading any copyrighted material is illegal though as it is technically receiving stolen material. You must make the backup yourself in order for it to be legal.