I'm sure my data had nothing wrong, so why did this happen?

I was playing PMD and my 3DS crashed. I reopened PMD but it crashed again.My mum took me into the car home, and we went to McDonald’s to get some ice-cream.When PMD stop crashing for me it said:“The data file is corrupted.The game will be erased.“Later, the loading finished. finished and ALL of my options were gone. The only one left was “New game”.I started the game again, wondering why it got corrupted.

I treat my game cards like treasure. How did this happen?

Pleaselog inorregisterto add a comment.

I had this happen once to my Platinum version. My game had unusually large amounts of game-freezing glitches/crashes (when it did, mostly when leaving PKMN Centers and booting up), and one day I started playing it, it froze three times trying to boot up, and the fourth time it erased everything. I won’t ever know for sure why.

I also had this happen to my Diamond version after I lost it for 2-3 years and I found it and wanted to start playing it again. Except it died immediately. :/ I’m pretty sure this one was my fault though.

Funny thing, I bought a new EOT game and when I booted it up for the first time, there was quite apparently a file already there and it had been started. It had been corrupted when I started playing it the first time. Weird, eh?

Bottom line is, Sometimes they make faulty games that don’t work as good as they wished.