The Adventures of Superman: The Kryptonite Saga Vol 1-3 - Siebener

Tasteful adaptation of lengthy radio serial.
All intro and closing music has been removed, as well as recaps.
The discreet over-layering of classical music cues enhance the soundscape.
Audio editing struck me as seamless.

This would make a nice introduction to OTR (old time radio), and it is just short enough to listen to on a commute.
60 minutes per remixed episode.
Bear in mind, Superman was a childrens program, so the plot is simplistic and many characters are adult juveniles.

Much of the youth tone disappears with V2, charting Superman’s fight with Atom Man, fiendish Nazi weapon.
The Nazi survivors are not cartoon types, either.
Despite being a childrens radio show, this was surprisingly dark, and somewhat techie, with references to atomic weaponry.
Artwork was fine, though images were available online featuring Atom Man.

With V3, Siebener concludes his Superman audio trilogy on a peak. This installment focuses on narrative and action. Next to no jokes, juvenile humor, or dimwitted henchmen.
Fun, popcorn packed adventure as the Man Of Steel battles Atom Man, the diehard Nazi, bent on destroying Metropolis. The last seconds of the edit even leave the possibility of a further sequel open … if barely a crack … with the Caped Crusader.