Copy.nhb.mov — Skype

Musicians have been known to use Skype to record guitars and vocals or to route DAW audio into calls. 📂 Personal or Archive File If you found this on a shared drive or a computer: It is likely a Skype video recording that has been renamed.

It could be a contemporary performance piece designed to be viewed as a "leaked" or "archived" Skype call. The portion of the filename is not a standard video extension (the file itself is a .mov ), but might stand for: National Theatre Board (or a similar arts organization)

Record and play back a Skype for Business meeting - Microsoft Support

While it is not a widely known "standard" file (like a system driver), it is most likely associated with one of the following: 🎭 Performance Art or Monologue