Hi -
I have about a dozen NEF files shot with a D850 that are corrupted. They won't load to LR or open in PS. I've tried just about everything I can think of; chkdsk C: /f; (zero bad sectors - no disc errors), Adobe Convert to DNG (failed); won't open with MS RAW viewer (failed) .... Tried the free version of Stellar, but it didn't show on screen that it worked and their custom support seems to have vanished about a year ago. All of my work is backed-up to THREE offline hard drives. These files have the same problem on all three hard drives. I've tried your program. Pretty sure I master at 14b, but tried both 14 & 12. Generates the "Fixed" folder, but throws an error: "File format error" ... I've just downloaded ExifTool and hence using the most current version.
On these drives I also have about a dozen JPeg & several PSD files that are also corrupted and won't open or load to LR, etc.
I could send the NEF(s), but they are of course rather large files ... >50Mb.
Can you help? Several of these snaps are important to me.
Can you help?
Do you know how they got corrupted? Did you use exiftool on the file to change anything? For example, changing Make or Model tags can make it so that programs can't render the images. In that case they can be fixed by changing the tags back to what they were originally.
If you did something like run the command in FAQ #20 (https://exiftool.org/faq.html#Q20), they may be irreversibly corrupted, because, as mentioned in that faq, you must never run that command on RAW file types.
Finally, try zipping the file with something like 7zip. If the 50 meg file shrinks down 80-90%+, then there's no image data left in the file and it cannot be saved.
Otherwise, if you can make a sample available through something like Dropbox or Google Drive, then someone can take a look at it.