Nokia Photo Transfer for Mac - Why does Nokia Photo Transfer for Mac duplicate some of my photos and videos after the transfer?

If you transfer photos taken with Nokia Camera or Nokia Pro Camera, both the high-resolution (5MP) and the full-resolution (for example, 19 or 34MP, depending on your phone) version of the photo are saved to your Mac. If you have taken DNG photos, both the high-resolution (5MP) and the full-resolution DNG (for example, 19 or 34MP) version are transferred to your Mac.Similarly, if you use Nokia Smart Camera or SmartShoot, Nokia Photo Transfer for Mac imports both the JPEG and NAR version of the photo.