In this specific historical context, "Vixen" usually referred to a specific sub-site or series within that network (not to be confused with the modern high-production studio of the same name founded much later).
These were prominent "mega-sites" or affiliate networks that hosted various niche studios. They acted as portals where users could access multiple "flavors" of content under one subscription. -Kinkcafe - Pkink - Vixen - Lady in white.wmv-
Windows Media Video was the standard of the era. It offered a balance of compression and quality that was manageable for the dial-up and early broadband speeds of the time. The Aesthetic: The "Lady in White" In this specific historical context