Thank you for that suggestion about changing the driver, but I'm afraid that doesn't solve the problem. I'll instal a stand-alone burner. Thank you everyone for your help
The drive HL-DT-ST- DVD+-RW GHB0N will read DVD/CD perfectly well, but will not write I suspect this occured after upgrading to Win10 from Win7 I have tried uninstalling/reinstalling the drive but it doesn't help On inserting a blank DVD I am asked to format it, but no such option is available on the drop-down list when accessing the drive. Help gratefully received as I find many other posts elsewhere from people with the same problem, but no solution that works in my case
DVD/CD drive will will not burn/write on an Optiplex 7020