If you go to UMass folder then context index . If you click on the Aggro-Inovations podcast: episode #138-how not to go broke ranching.mp3. It will bring up brings up Page not found. I don’t know if its just issues with the link or if its something else.
Those links are not local links, but rather links to the sources of the content. The actual location of those files can be seen in the “where to put in library” column. This is an index file created by some students at the University of Massachusets i believe.