Can I still duplicate a CD with disk utility?

Yes, I still own an iMac with super drive. But it seems the Disk Utility has changed. Can still burn a duplicate CD with it? It is a medical image CD from an MRI scan. I need to make an identical copy of it so that I can give it to my doctor while preserving a copy for myself.

The CD is only readable in MS WIndows. None of my windows machines have DVD/CD drive any more. This old imac is the only one at home that has the drive to support what I need to do.

Can someone help me with this?

It used to be so easy. I create a disk master image with file extension of .cdr. And then with disk utility, i can burn it to another blank CD. How do I do it now?

I am on MacOS Sierra 10.12.6

Thank you so much.