How to finalise DVD already copied

Hello … I managed to record a movie onto my computer hard disc and with NeroVision Express 3, copied it onto a DVD. The movie plays beautifully on my computer. However, My DVD player (for TV watching) says “DVD not finalised”. Is there a way I can now finalise this DVD - can’t see a way with my NeroVision but is there any other programme? Look forward to any help. Thanks.

What are the file types nero alone should finalize the disc unless it is checked to run a multisession.