If you assume the original (RAW) file is corrupted it may be worth trying to recover it. I'm not sure that's what the OP is facing, though.
I have had a few instances of RAW files on memory cards becoming corrupt and unreadable and I have to say Recuva has been useless. I had success with CardRecovery, which is unfortunatey not free. It took some time, but it succeeded in bringing back every picture, the only problem being that the end-result was large JPEG files, not RAW.
www.cardrecovery.com/
Last edited by: ChrisPeugeot on Wed 23 Mar 11 at 15:14
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