The CDs & DVDs preference pane allows you to choose which application opens when you insert blank optical media. One of the choices is Disk Copy. If Disk Copy opens and you dismiss the window, the disc will eject. This is normal and does not mean there is an issue with the disc or the optical drive.
To change your settings, follow these steps:
1. Choose Apple menu > System Preferences.
2. Choose View > CDs & DVDs.
3. Select the desired choice in the "When you insert a blank CD" and "When you insert a blank DVD" pop-up menus. If you are not sure what to select, choose "Ask what to do."