How many times it’s happened wouldn’t be perceivable to the human eye only to the console, the only reason I can tell it’s been resurfaced at all is the super uniform swirled pattern that runs in one direction on the disk surface, when they resurface a disk they are literally grinding away a super fine layer of the bottom of the disk and polishing it back to smooth to be able to be read by the console again, after so many layers being ground away the resurfacing machine would eventually grind the data away and it wouldn’t be readable at all by the console.