First by USB: On my pc I opened directly from the Note 4 card.DCIM.Camera file containing over 200 photos which all open fine. It said "{Windows Photo Viewer can't open this picture because the file appears to be damaged, corrupted, or is too large. (It is 6.5 MB -several larger files open fine) One other warning said it was a .pcd file.
Then I attached the photos, which look fine on my phone in the gallery, to an email. I got a couple of different warnings: 1. When I tried to open with FileViewPro (after googling how to open pcd files) = "This type of '.pcd' file can only be opened in native mode." 2. When I tried to use Photoshop - "Could not open the document because a JPEG marker segment length is too short (the file may be truncated or incomplete). 3. I changed the .jpg to .pcd and Irfanview opens up a blank screen
The photos show fine in my gallery on the phone.