I am not from Laminar Research; just a flight simmer from downunder.
Provided you have a genuine disc version from Laminar Research you need to contact them direct at info@X-plane.com and explain your situation in seeking a replacement for a damaged disc. Replacement DVDs can be made available at a cost. Have a look at the following link found at https://www.x-plane.com/product/x-plane-10-replacement-disks/ Nothing will be organised for a replacement from Laminar Research until you make contact direct with them.
If you have a disc version from Aerosoft (licenced from Laminar Research to sell the DVDs) you may need to contact them in the first instance. Details should be on the packaging.
As a side issue are you aware the final issue or update for version 10 is 10.52.
Why not consider a complete upgrade to X-Plane 11. The current version is 11.32.