What caf said. There are analog radios, but there are no analog CDs; there is no way to consume anything on a CD without making a copy of it.
Linux: ioctl CDROMPLAYMSF
https://www.kernel.org/doc/html/latest/userspace-api/ioctl/c...
OpenBSD has cdio(1), IDK about the API.
After running these IDE commands, the CD contents would be streamed thru the analog output.
It's not like a record or a cassete tape or a laserdisc (I think), where you can build a system with amplifiers only and no copies or sampling.
What caf said. There are analog radios, but there are no analog CDs; there is no way to consume anything on a CD without making a copy of it.