The DSC file extension is related to the Nikon Coolpix digital cameras. The *.dsc file contains identification data for the camera storage.
DSC file extension - Nikon Coolpix disk identification file
What is dsc file? How to open dsc files?
File type specification:
The DSC file extension is used for hidden files stored on Nikon memory cards in directory with photos. A *.dsc file is a disk identification file, most likely used for some encryption or security purposes.