Do most CDs have ISRCs in them? I have the physical CDs for Beethoven Blues from 2024 and also over 100 discs of the BBC Magazine Classical series like this one from 2010.
When I put the disc into my drive and look it up with Picard, the correct release pops up and I select it. It loads. I highlight it in the UI. But the Submit ISRCis greyed out. AFAIK, none of these releases (nor any of the BBC series discs) have any ISRCs associated with them in the MB database (I reserve the right be be wrong about this 
).
How can I tell if there are ISRCs embedded in these discs?
Edit to add: I’ve read this thread and went through the instructions here but, no dice.
