This collection is comprised of approximately 22,000 items of mixed media (slides, silver gelatin prints, negatives, and color prints, among other formats).

The collection contains audio recordings on 45 CDs, created from original recordings by Reinaldo Arenas and Roberto Valero. The recordings include dictations of Arenas' memoir Antes que anochezca (19 CDs), interviews between Valero and Arenas conducted in 1986 (10 CDs) and 1988 (13 CDs), Arenas' reading from his works (1982), and a joint lecture by Arenas and the poet Heberto Padilla titled "The Cuban Intellectual Today" (1980).