Strange memory card behavior, or was it the camera?

[Catzilla]

I'm zipping across New England on the Acela Express and I decided to load photos from my new camera to my old iPad. With the camera off, I removed the new Transcend 32GB card and put it into the card reader for the iPad and plugged it in. iPhoto launched and I imported the photos and chose not to delete. I put the card back into the camera and got an error, couldn't even reformat. I switched slots on the camera and got the same thing. I plugged it in the iPad and the photos were still on it. Back in the camera and it was fine. WTF? Any ideas? Nikon D7000 if it matters.

[Buzz]

Maybe try skipping, or skating, instead of zipping?
As long as it worked the second time around back in the camera, as you say, fine, you're probably fine.
Chalk it up to some SCSI voodoo you should have had years ago, that finally caught up to you...?
Maybe try the in/out, back in/back out on the 'Pad after copying and before popping the card back in the camera next time and see if that works, so that the last action from the 'Pad is view, rather than copy, as far as the card is concerned. Not sure how it affects the electronic fingerprint, but from what you described, it's worth a shot.

[wowzer]

It sounds like your card may be failing...be sure to backup everything on it. Don't use it for mission critical photos. I had 2 thirty-two gig CF cards go bad...I have to do an RMA on them.

[OWC Jamie]

Sweep the cobwebs from the corners of your memory card.




I've had weird things like that happen with MY D80 and external card reader .
I've always figured it was me not pushing the card in all the way or something.