What's your worst game file loss story?

[JOKA_]

Way back in the day, one of the Playstation magazines gave out a demo disc, that, when you played a certain demo, it would freeze and then proceed to delete...wait for it...your entire memory card.

I lost every single save file I had amassed over the PS2's lifetime, and I remember I was about 75% of my way through GTA: San Andreas when it happened.

I actually wasn't that pissed. I restarted GTA (eventually finished) and my mom got pissed at the mag and sent a letter in, so I got a free copy of Gran Turismo 3 out of the deal.