There is none that I have heard of. My cuz had gotton a new 40 gig ps3 and after a month it stoped reading all discs. I know my cuz he would not let a finger print or dust be on the ps3. It just happened like that. My suggestion is that you wait another month to get it when all of the bugs in it are fixed
I hope this helps you.
Tip: the 80 gig has extra usb ports and is a big difference.
Updating a ps3 takes a lot of memory and I mean it a real lot of memory is used