A significant part of this universe was , a physical production studio based in San Marcos, California , and its associated brand, Leda Productions . Leda Productions was founded by author and editor Leon Dalman and focused specifically on producing videos and publications portraying female domination in a traditional manner. The women who performed in these videos, known as the "Leda Ladies," formed a subculture of their own, which was documented in at least one published volume, The Leda Ladies Volume One .