Since 9/21/2020, discoverE is exhibiting a problem that we hope will be resolved quickly. The Resource Type filter in the left-hand “Show Only” column does not show Audios, Videos, and Archival material/manuscripts, even if your search results contain materials of these types. We are checking with the vendor to resolve this problem.
Meanwhile, you can use the drop-down “Material Type” menu below the search box for simple searches,
Or in upper right in the Advanced search panel
to select Audios, Videos, or Archival Materials / Manuscript BEFORE sending your search to discoverE.