Lightroom 4 corrupting RAW files / 'Unexpected end-of-file' error'

Started Jun 10, 2012 | Discussions thread
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Lightroom 4 corrupting RAW files / 'Unexpected end-of-file' error'
Jun 10, 2012

I have an issue with Lightroom 4 which seems to corrupt my Nikon D800 NEF(RAW) files.

Here's my procedure description:

  • import NEF-files from memory card (various, not just one, not just one brand) to MacBook through Lexar Card Reader

  • import NEF-files into Adobe Lightroom 4

  • from time to time a message 'Unexpected end-of-file' error' shows up

  • in this case the file can not be opened any more at various levels: sometimes I can still zoom in, sometimes not.

  • opening the NEF-file in another program, ie. Mac Preview, leads to a corrupted file at various levels, with coloured lines from the bottom of the picture upwards, at various levels and strengths.

  • Export of the files is not possible

  • 'date modified' in Mac's "Finder" does not change!

Until this evening I sometimes had the impression that over time the bad part of the photo became bigger over time.

Tonight I had worked on a NEF-file in Lightroom with no problem. Later I went through the different photos for sorting ('star levels') again ... and suddenly one file gave me the 'Unexpected end-of-file' error' message. Opening the file in Preview showed the same symptoms. This time I still had the original file on the memory card so I could copy it over again. After copying the original file into the directory Lightroom 4 accesses the photo opened without any problems, including the changes I had earlier made in Lightroom.

Has anyone experienced the same problem so far? I searched but could not find anything.

I am very scared now and frustrated that a RAW converter as Adobe Lightroom destroys RAW files!

Any help and hints extremely appreciated!

Nikon D800
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