I have a SanDisk 32MB CF card, I think the serial number is AA9911FA, so I'm guessing its a 1999 issue. It also has A copywrite symbol with 99 beside it. Anyway, I have (had) pictures on it, but the computer says the files or directory are corrupted. When I right click on properties it indicates there is data on the card. Any hope of retrieving these pictures? And is this about the expected lifespan for one of these cards?