If found audio is an endangered species, then this radio show is a woolly mammoth of collected noise that should have been extinct years ago. This two-part collection samples sixty years of mic checks, from abstract gurgles to impromptu serenade.

The appeal of the enduring, mysterious Swedish star Greta Garbo, who made "I want to be alone" an essential element of her legacy, is chronicled by Mark A. Vieira with a meticulously researched account of the making of each of her 24 American films.