In a word…no… at least I don’t [I]believe[/I] you can create a reliable bkup.
My son just picked up a PS3 and he was interested in bkups as well.
Most ppl. who seem to be [I]in-the-know[/I], do not believe it is possible.
I’ve seen a site or two that insist it can be done with retail software such as Game Copy Pro. However, when you google reviews, users say the software is a scam.
This weekend, I might give some of the software a try and may make a few coasters…
If I get lucky, I’ll let you know.
If you find any good info, please post back or pm with the details.