A few days ago I got back late with my days work and went about importing it into Aperture as per usual. It was a big job so while the import was taking place I decided to export another job that was wanted the next morning. This client needed origonal RAW files (NEF nikon) so I selected 'all' and chose 'export originals' from the File menu. These then went to my desktop, ready to be uploaded to a client FTP. So.. this is where the scary stuff started. The import went fine but the export was a disaster. They appeared (on the desktop folder) with the preview as cover flow being the same as the import. When trying to open them they come up as completely black images. Ok, stay with me, this gets worse. Going back to the Aperture project, many of the correctly displaying previews have now turned black also, remaining previews when clicked on turn black. I've checked in the package contents of the library and have found the import master files correctly archived. The master files for the export though (the ones I'm desperately looking for) still view as the same image as the import. They do however have the file number of the exported files. I hope this makes sense. I really need to locate these missing original NEF files. Please help..