What do I need to read a cd that was printed with a pc. I have a mini mac running using El Capitan 10.11.6
Is there something I need to download to see this? thank you Maybe I should have said from a Windows machine.
Sounds like DICOM files. Since most people don't have a medical x-ray reader installed, doctors often distribute the whole package (the pics with a Windows reader).
Use a Windows PC if you have one. If you don't, google for "mac dicom viewer".