Your CDs with the playable binaries were "pressed" in a factory with industrial equipment. The source was stored on the hard drives of ancient workstations and

Your CDs with the playable binaries were "pressed" in a factory with industrial equipment. The source was stored on the hard drives of ancient workstations and/or file servers and maybe a non-archival CD-R or a Zip/Jaz drive. Either way, the physical media were lost in an office move or layoff 3+ reorganizations ago. Some ex-employee probably has a copy in their garage, but good luck finding them.