I have a number of raw files that are corrupted. The culprit is a bad disk. In any event I cannot go back and "reshoot" these pics. When I view them in Windows Explorer as small/medium icons, all of the pics are viewable and appear to be okay. However, when I view them as large/extra large icons, they are "corrupted" with streaks and bands of colors horizontally across most of the picture.
I tried recovery software, e.g. Stellar, but they simply recovered the file in its corrupted state ... no repairs were done.
I have scoured the Internet and cannot find a solution.
Do you know of any utility software that repairs/restores a corrupted NEF file?
sorry to hear about your problems. I'm afraid there could be so many ways of corrupting a binary file that it is almost impossible to write a generic program to fix it. There could be parts in the file which are missing or reset to zero or some random pattern.
In a very lucky scenario, it could be just a few flipped bits somewhere in the file (headers) and the image data might be recoverable but it would require intimate knowledge of the file format to put it together manually.
If the files in the disk are still recoverable as chunks of raw data and only the index of the file system is corrupted, it would be possible to compose a file by appending the chunks in right order but in a binary file, this could be very slow process.
Depending on the value of the data, you may want to ask professional services to recover the files from the disk but usually it costs a lot.
Okay, that clarifies. In Lightroom try exporting the corrupt NEF file as a TIF image file and see if you get a viewable image. If it does not process then the file is indeed corrupted and probably not salvageable.
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A followup question as I decide whether or not to delete the corrupted files. When I view the medium icon in Windows Explorer, all of the pictures a viewable for a couple of seconds then the corruption (streaks of pastel colors) appears to be overlayed.
My inexperienced thought is that the elements of the picture are embedded into the file. Is there some post processing software/technique that I could use on these files?