Hi Bert,
Thank you for posting your query on Microsoft Community.
As per the description, I understand that you are facing some issues DVD-CD-ROM on your Windows 8.1 computer.
This might have occurred due to some hardware conflicts.
I would like to know some information.
- Have you made any changes to your computer prior to this issue?
Try the methods.
Method 1:
Run the fixit from the link:
Hardware devices are not working or are not detected in Windows
http://support.microsoft.com/mats/hardware\_device\_problems
Method 2:
I would suggest you to try the steps given in the Microsoft Help Article and check if that helps.
Look for the troubleshooting based on the Error Code 38.
https://support.microsoft.com/en-us/kb/310123
Hope this helps. Please let us know the results. We will be glad to assist you further.