The name itself is a contradiction. (often stylized as "hyo8" in online lore) was a high-band analog video format introduced by Sony in 1989. It was known for its "fuzzy" warmth and was a staple for home movies and amateur videographers for decades.
Audio that sounds like it is constantly rising or falling in pitch without ever reaching a peak, creating a sense of mounting dread.
By attaching the extension—a modern digital container—the creator of this mystery suggests a "digitized" relic. It implies that something recorded on an old, decaying tape has been forcefully brought into the modern age. 2. The Aesthetic of "Uncanny" Video