Dear Phil,

You have been a really big help in all of my metadata and image problems. I can't thank you enough on how much knowledge I have gained about still imagery and metadata through your forum. I again have another problem with an image. When I try to modify say the caption field. exifTool returns

perl exiftool -description="test" bad070724-F-0870p-012.jpg

Error: Corrupted JPEG image -

o image files updated

1 files weren't updated due to errors

I would really appreciate if you could find what could be wrong with the following jpg.

http://download.yousendit.com/C85597F94F8E96B1

Regards,

Vik

I just noticed that the ThumbnailLength value is also wrong by 0x50 bytes, so the ThumbnailImage is truncated but otherwise the image is OK after this repair.

But this gives us a clue as to why the image is corrupted. The originating software got the size of the ThumbnailImage wrong, so it calculated the size of the APP1 segment incorrectly (it thought it would be 0x50 bytes smaller than it actually was). So this was definitely a software bug, and not a problem with a file transfer corruption.

- Phil