Where to install navigation disc upgrade

I have an genuine set of map of 2016-2017 for my 2011 C300 from dealer, two disks. If I make a copy of it, will the copied set work just like the original?
When my car was in for B service, this dealer damaged the brake line/hose(?) and fixed it afterwards, so I asked for a free map update. They did it and left me with the disks.
If there was no above incident, I would probably never want to update the map, too expensive and I don't need to use it often.




