Orson Welles on Suspense http://www.archive.org/details/OrsonWellesOnSuspense
This collection features The Hitchhiker by Lucille Fletcher, The Most Dangerous Game by Richard Connell, The Lost Special by Arthur Conan Doyle, Philomel Cottage by Agatha Christie, Lazarus Walks by Robert Richards, The Marvelous Barastro by Ben Hecht, The Dark Tower by Alexander Woollcott and George S. Kaufman, Donovan's Brain by Curt Siodmak and the Donovan's Brain parody (Orson Welles Radio Almanac).
Suspense, CBS radio, 1942 through 1962.
The signature piece is probably the two-parter, Donovan's Brain. It's a nifty version of a great story. Music by Bernard Herrmann as well.