why does the date modified updates not working for CR2 files?

[andrewe81959005]

I'm working with Bridge 2022, on ma late 2013 Mac Pro.

I've noticed that whenever I edit a file in camera raw or change the color label, the date modified gets updated, seems normal, but for my Cr2 files the date modify metadata doesnt get updated. is this a bug that im late to fixing?

Just in case I've also tried on Bridge 2024 and CR2 files are not being updated with date modified. Just noticed as well that NEF files do the same

My TIFFs, DNGs, and JPGs all update the date modified metadata for something as little as changing the color label.

can someone help explain this?

[gary_sc]

This is because you cannot modify a raw file. The changes you see in a raw file are contained in the sidecar files (if you move the sidecar files into a different folder, all of your changes from ACR will disappear, but if you return the sidecar files, they will return them). Both DNG, TIF, and jpg files are container files. That is, they contain the sidecar files as a folder — it contains them.*

If you look at your sidecar files for your CR2 images, they will show the changed date.

FWIW, I always convert my CR2 files into DNG because I find them less hassle. Not everyone does that; it's a user's choice.

*If you make changes in a (say) JPG file and send it to someone who does not have Adobe Photoshop applications when they open the JPG file, they will not see the changes because the sidecar files cannot be interpreted by their photo application. To avoid this, always save your JPG-corrected files as another JPG and then send those to others.