Okay. would you suggest any best dvd writer !!I have a Gigabyte Z370 Aorus Gaming 5 with 8700k and had no problem adding or using a DVD Writer. It was an old one I pulled from a PC. It works just fine on Mojave. I have not actually burned anything on this Hac yet but my on older Sierra build with a different DVD burner works just fine also.
My suggestion is to find an older PC and pull it out and try it.
Thank You So Much it really Helps mehh !!Look at Finder > Preferences. There is an option to show CD and DVD disks on the desktop that needs to be selected.