Dear Debbie,
Thanks for reaching out! I'm an Independent Advisor and a Microsoft user like you. I will be happy to assist you in this regard.
It looks like you do not Burn it. The procedure you have done is just copying the files to the DVD, but when you eject/insert it you do not see the files on the DVD, is that correct?
To burn files on DVD, kindly follow the procedure below:
1-Insert DVD into the DVD drive> open it> select either Like a USB flash drive or With a CD/DVD player.
2-Copy the required files to the DVD drive.
3-In the toolbar menu of the File Explorer window, click on Drive Tools then select Finish Burning.
Also, you can do right-click on the white space are in the DVD drive, and select Burn To Disc.
PS: If you’re using a write-only CD-R or DVD-R disc and you erase a file when you choose "Like a USB flash drive", the file will no longer appear in Windows, but space will still be taken up on the disc. But if you use a rewritable disc, you can erase files as you go without having to wipe the entire disc at once.
Source:
https://www.howtogeek.com/689705/how-to-burn-a-...
Note: This is a non-Microsoft website. The page appears to be providing accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.
Please let me know if you need further assistance and keep me updated.