While looking for an anthology on Barnes ad Noble, I found that they cross-index CDs by not only artists, but sound engineers and contributors. A search on "Spottswood" gives you a list of 59 recordingsthat Dick has had some involvement in, whether contributing rare cuts from his collection of 78's or writing extensive liner notes about the music and the performers. You can see the results here:

Spottswood at Barnes and Noble The first 10 CDs in the list are:

Roots Music: An American Journey
Screamin' and Hollerin' the Blues: The Worlds of Charley Patton
Avalon Blues: Mississippi John Hurt
Vintage Music from India
Art of the Cymbalom: Music of Joseph Moskowitz 1916-1953
The King of the Klezmer Clarinet: Naftule Brandwein
The Bluegrass Album, Vol. 5: Sweet Sunny South
Slovak Csardas: Dance Tunes from the Pennsylvania Coal Mines 1928-1930
Au Bal Antillais: Franco Creole Biguines...

which gives you an idea of the breadth and depth of Dick's interests and knowledge. And his radio show reflects all this, and more! Give it a listen...