QUOTE (Blue Emerald @ Mar 20 2011, 04:55 PM)
Well, my only guess then is that the previous owner did something to the disc that corrupted it (turned the power off/reset the console/moved the memory card while it was saving), or perhaps a blackout affected the disc while it was saving. I know it's possible to corrupt a memory card's ability to save a certain game when that happens (my pre-owned Controller Pak couldn't save Quest 64 for this very reason), but I'm not quite sure if this also extends to the disc itself. I'd have to do some hard searching for the answer.
[EDIT] Okay, apparently it is possible to damage a disc if you interrupt its save operation. The previous owner may have just unknowingly screwed you over.
It is *not* possible to "corrupt" an optical disc by screwing with the console (power off, reset, remove memory card) while saving the game. The worst that would happen is the memory card gets wiped (because Nintendo has no clue how to write a reliable flash memory filesystem). Disc scratches usually aren't caused by doing any of these things, either.
(Xbox 360 is an exception to the rule because of its notoriously defective disc drives that lack foam padding, which causes the discs to crash into a metal component if the system is moved, resulting in a scratch.)
Also, as far as I know, no retail game consoles have disc drives that support writing to CD-R/RW/etc media. (That, and retail game discs are pressed CD/DVD-ROM discs anyway, so a CD/DVD-RW drive wouldn't be able to write to it anyway.)
This post has been edited by GerbilSoft: 20 March 2011 - 05:58 PM