https://bundleofholding.com/presents/Hardboiled
This all-new Hardboiled Radio Bundle presents vintage Old-Time Radio (OTR) crime drama from the Golden Age of Radio, 1939-51. These dozens of half-hour episodes feature Sherlock Holmes, Sam Spade, Philip Marlowe, Nero Wolfe, and the twist-filled suspense stories of Inner Sanctum, all remastered and re-engineered by publisher Nathan and Evan to sound crisp and new.
We provide each radio episode complete as an MP3 audio file. Like all Bundle of Holding titles, these files have NO DRM (Digital Restrictions Management), and our customers are entitled to move them freely among all their devices.
Ten percent of each purchase (after gateway fees) goes to this offer's designated charity, the Internet Archive. The Internet Archive is a 501(c)(3) nonprofit digital library of millions of books, movies, software, music, websites, and more.
The total retail value of the titles in this offer is US$117. Customers who pay just US$6.95 get all elevenepisodes in our Radio Sampler (retail value $33) aas DRM-free MP3 audio files, from the series The New Adventures of Sherlock Holmes, The Adventures of Sam Spade, Detective, and The Whistler. ("I know many things, for I walk by night.")
Those who pay more than the threshold (average) price, which is set at $17.95 to start, also get our entire Bonus Collection with twenty-eight more episodes worth an additional $84, with more Sherlock Holmes and Sam Spade plus The Adventures of Philip Marlowe, The New Adventures of Nero Wolfe, and Inner Sanctum Mystery.
I would probably be more interested in this if there were some British radio series mixed in there, or if I was running games set in the eras these shows were made. As it is, I think it's an interesting idea but not really something I want.
Later - It's been pointed out to me that a lot of this material, if not all, is in the public domain, though probably not cleaned up as in this offer. If it's of interest, you might want to investigate public domain sources first.