I have an image in a folder on my Macbook that is used to store files for rotation as my background. The folder contains about 20 photos, and I haven't moved or modified the folder in nearly a year.
Today, one of the images started to show a bit of artifacting that one would typically see if the file had been corrupted. What might cause something like this to happen?
In full disclosure, let me give a bit of background. About a week ago, I was walking to my car, from my office, in the light rain. A quarter of the way to my car, (which was located in the far end of the lot) the rain started to seriously pour and it was hailing as well.
So, I sprinted to my car. While running, my laptop bag unzipped itself in the process, my Macbook fell out of the bag, bounced, rolled 3 times across the pavement and landed in a about 1 inch of water-- I was sure it was dead.
However, I blasted the car heat on it on the ride home and when I got home, the machine booted it (What?!) and it has worked perfectly for the past week.
So far, I've experienced no form of discernible hardware failure and this is the first glitchy thing I've seen since last Friday, and I use this machine every single day.
Is this file corruption almost certainly a sign of hardware failure or is there a reasonable chance that this file could have been corrupted by some other reason and it was just by chance of circumstance that the file was corrupted shortly after I dropped my Macbook?
I have AppleCare on this device, but I doubt they will help me fix it unless I can point to a specific problem.