How to record on CD my Album from Photos App?
To move your Photos library to DVD:

1- Make an empty folder in your desktop or any other place in Finder (in a hard drive with at least 8GBs free space).

3- Go to your target album in Photos.app and press Command-A to select all photos in the album.

4- Drag photos from album to the open empty folder.

5- Wait! (It takes a little time. You can see the whole progress in a circular icon at the top of the Photos app, and if you click on it, a normal progress bar will appear, and it tells you the number of exported photos)

6- Burn. Again, press Command-A in the folder, and drag all the media to the empty DVD, and press Burn at the top-right corner of the Finder windows containing DVD.

7- Wait for the burning to DVD process to be completed!

NOTE: There are a lot of apps to help you do this in less time. You can find them with a simple search on Mac App Store.