When downloading or streaming, "HD" refers to the resolution and file size: Approximately 2–4 GB for a 2-hour movie. Full HD (1080p): Approximately 4–8 GB for a 2-hour movie.
Because of legal pressure, these sites often change their domain names (e.g., .pro, .cx, .work) to stay online [2, 4]. Legal Alternatives hdmivies2