Finalizing A Dvd-r Sv2000 Why Does A "recording Error" Message Pop Up When I Plan To Record/finalize A Dvd+r?

Why does a "recording error" message pop up when I plan to record/finalize a dvd+r? - finalizing a dvd-r sv2000

When I as a show for DVD + R, a "registration error" appeared, and even when I am about to finalize a DVD + R. You are with the DVD recorder that I compliant. Why?