Windows media player burned a dvd for me now when i tried to play it on my dvd player it wont work what do i do it says disc is not finalized please finalize the disc on the recorder which was used for the recording........... dvd_errl0g50000010800090009000701010c0000000000002f.......... please help me fgure it out

To finalize a DVD, you can also follow the steps below:
Step 1: Open File Explorer.
Step 2: Click the DVD drive.
Step 3: Click Close session on the toolbar. Now the session will be closed, so the disc can be used in other computers.

If you have DVD or CD burning software that allows finalizing, the process is simple. Once you have finished burning, a "Finalize" or "Done" or "Close disc" button will appear. Clicking this button will ensure the finalization of your discs. This process can be applied on most programs that require manual finalization. There are some other DVD burning programs that can finalize the DVD automatically, use those programs will make the process even easier.

Most DVD player can't read open session discs, meaning when you burn your DVD movie there's an option there that when your disc is not full you can still add files on it, it's open session, in your case if you want to play it on dvd player you must select the finalize the disc to close the session and you can play it in any dvd player you want.