My MicroSD memory card (1 GB) fail

I have Motorola phone (Motorokr e6). On this phone, I install games for my children. The Game is install on memory card microSD SanDisk 1 GB.
Yesterday, suddenly I am shock because the game is disappear. This matter make me confuse because unprecedented previously.

I restart the phone. Next to that happened make me panic. That make the phone is hang.
I start to distrust by my memory card. Hence my memory get out from the phone. And then my phone is live again.
I try to repair my microSD with format through Windows XP and Linux, that is fail. Finally I try googling. I get software from Panasonic to formatting memory card
If you have same problem. You can download software from following link SDformatter.
Hopefully this can help.