Oh great, this is like the AIDS of Gran Turismo 5.
This, quite frankly, absolutely needs to be fixed immediately. A game should not have a stopping point just because it reaches a file length, it needs to go for as permanently as possible.
The news especially sucks because Gran Turismo 5 is one of my favorite video games this gaming generation and I don't want to lose my progress just because there's a bug that will kill it.
Let's just pray for a fix before the majority of the Gran Turismo 5 active players are no longer able to access the game without losing all their save files. I know I won't be accessing the museum cards for a long time.
As for the rest of us, let's set up a guideline for when we should stop playing the game before it gets hit by the bug. A good rule of thumb would be 4,000 KB.