Mossj1066 Said:
"2012 superdrive used as external drive on 2020 macbook pro wont play audio cd but plays dvd fine: [...]hi, thank you for responding. I am unable to load the disc through the app.[...]"
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Notes:
A. Go Here: If an Audio or Video file doesn't Play on Mac - Apple Support
What is recommended by macOS - Right-Click on an item. and see what is shown for "Open With..."
B. CD-R vs. Music CD-R
There are CD-Rs and then there are Music CD-Rs. So, if you want to play music, then maybe you need to burn all of this to a Music CD-R or maybe the other way around. Find these at your local retailer, and user another computer to burn these to the CD.
C. Try a Different External Drive:
Have another external drive to try(Apple or Not)?- If so, try it, and see if it runs.
Also...
D. Create and Use a New User Account:
Go Here: Set Up Users, Guests, and Groups on Mac - Apple Support
To Start Over with a New User Account:
- Login: As an Administrator
- Save: Your files to an external device
- Create: an Administrator Account
- Log Out: of the current user
- Log in: to the new Administrator
- Try: These Files
You should be set from there.