I have installed VirtualBox, Guest Addition CD Image, Extension Pack,
I want to access my CD/DVD drive.
In VirtualBox once I open Windows Explorer CD drive shows as follows

VirtualBox Status Board at bottom right shows as follows

Settings shows as follows

I already placed CD on drive.
Once I click the CD on Windows Explorer I get the following Message

How to I correct the problem? I installed Windows OS using DVD. I think the problem appeared once I install Guest Addition CD Image. Not sure.
Request your help.
Thank you in advance.