Kirk,
I am using the current version, 4.6.1. I have been simply upgrading over the last several years as newer versions are released, and I missed the addition of the "switch" you pointed out. My manual is old enough that it doesn't mention it either. The bottom line is IT WORKS in terms of making the NDF files visible, and I can rename in batch mode and keep everything in order as long as I remember to sort by date/time taken first. So thanks for pointing this out.
> However, I still can't get the program to download the NDF files from the flash card. So far, only Nikon Transfer seems to do this properly. Am I missing another setting in Photo Mechanic?
Frankly, I had not been using the dust reference feature for the past several years, but I am getting ready for an African trip and I know from experience how bad the dust situation can be there, particularly with the bodies that do not have automatic cleaning systems.