Look at the bald text, then look up the "Fair use" law. It is not illegal to backup PS3 games AT ALL if you don't share them. I don't want to replace them when they get damaged. I don't want to replace my PS3's Bluray laser because they use a cheap one. I am not breaking the law in the UK, nor in the US.
In the case where media contents are protected using some effective copy protection scheme, the Digital Millennium Copyright Act (DMCA) of 1998 makes it illegal to manufacture or distribute circumvention tools and use those tools for infringing purposes. In the 2009 case RealNetworks v. DVD CCA, the final injunction reads, "while it may well be fair use for an individual consumer to store a backup copy of a personally owned DVD on that individual's computer, a federal law has nonetheless made it illegal to manufacture or traffic in a device or tool that permits a consumer to make such copies." This case made clear that manufacturing and distribution of circumvention tools was illegal, but use of those tools for non-infringing purposes, including fair use purposes, was not.