I called Nintendo about the problem and they are replacing my Nintendo Land disk. This is weird, right? The problem is almost certainly not the Nintendo Land disk?
Eh....I would take what NOA customer service has said with a grain of salt. I've had to call NOA about 4 different times since the Wii U launch (because my Wii U bricked), and I sort of get the feeling that they've staffed up with some new, less-knowledgable, and newly trained employees recently.
On launch day the guy I talked to was fine, but all of their computers crashed and I had to call back the next day.
Call #2 was fine, except the kid apparently clicked the wrong button on his screen and physically mailed me a mailing label, instead of sending it electronically via email.
Call #3 was when I found out what the kid from Call #2 did wrong, but this other kid told me that he couldn't undo the first kid's mistake.
Call #4, with a woman who seemed far more knowledgable, told me the kid from Call #3 was wrong and she could totally undo the mistake that the kid from Call #2 made. Which she did, and all was good.