I downloaded a bunch of radio news broadcasts from 1932+. How is this possible?

Question

I just downloaded a huge amount of World War II era radio broadcasts, in MP3 format. I seem to have just about every one of them. How is this possible? Were they recorded by people at home, or what?

Answer 1

All time occurs in one implosion.

Answer 2

Obviously some radio enthusiasts did the conversion to MP3. Prior to the commercial availability of tape recorders after WW2, radio stations would have recorded their programs on acetate disks. Even programs that were done live would have been recorded, just as early TV programs were filmed by kinescope. That is how music records were mastered, as well. Musicians didn't call recording "cutting wax" for nothing. The disks which were intended only for use by radio stations were referred to as "transcription disks".