how to burn photos to a CD?

1 - Export the photos out of your Photos library to a folder on the Desktop.

2 - insert a blank CD into your optical drive.

3 - drag the folder with the image files onto the CD's ion on the Desktop.

4 - drag the CDs icon to the Trash bin in the Dock which turns into a Burn button and burns the image files to the CD.

This will give you a data CD with your image files on it.

You need to go into the Finder's preferences and set CD/DVDs to show on the Desktop when mounted. Make sure the circled checkbox is checked:

When you export from Photos (#1 instruction) you can choose to export to an existing folder or you can create a new folder

and it is clearly described in Photos help

Export photos, videos, and slideshow

LN

Me either - that does not involve Photos for Mac - it sounds like an issue with your CD burner - check its manual trouble shooting tips or support forums

LN