Comment 1 for bug 645862

Further investigation of the 149 duplicates photos:

I used Shotwell to import everything in my /media/Elements/Pictures directory, and got the truncated error report above.

I've now used the File Manager to search the same directory (and sub-directories) for "IMG012 2900.jpg", and although there are 60 files with this name there is no duplication of the image "/media/Elements/Pictures/Coolscan2/2001-19/IMG012 2900.jpg".

What criteria are used to establish that a given image file is a duplicate of another? It can't be filename, because there would be far more than 145 duplicates.

I'm also puzzled that a group of NEF files is marked "unsupported". These NEF files were produced by a Nikon product (Coolscan IV), so presumably they conform with Nikon's rules for NEF files.