Unknown image type?

[pixelator]

Using a SanDisk Ultra II card in my 20D. I was viewing the images on the LCD screen and also on a TV. I advanced to the next picture and it gave me a message saying "Unknown Imgage Type?". This was the only picture out of 130 on the card that was like this. Has anyone else run into anything like this?

[gasrocks]

Something happened while it was being stored and now it is missing a detail necessary for your software to recognize it as a .jpg = 1 lost pix. That's my guess.

[Bodryn]

I suppose there is a chance that a computer guru with a disk editor might be able to see just what hex characters cause the equipment to identify it as a .jpg, then edit those characters into your faulty file and rescue it that way. No doubt there is just one hex character that was changed. I say this only as somebody who used to have a lot of fun editing computer files to get them to do strange and wonderful things.... :)