Are you trying to track down the origin of this specific file, or
Some operating systems use a tilde or similar characters (like ~1 ) to truncate long filenames for older system compatibility. 091522_001-1pon.mp4
In specific media workflows, "pon" may be an internal shorthand for a specific camera angle, a "point of note," or a technical setting. 4. The Format: .mp4 Are you trying to track down the origin
This is a standard MPEG-4 video container. It is widely used because it provides high-quality video with relatively small file sizes, making it the go-to format for everything from social media clips to professional archives. a "point of note
The filename appears to follow a structured naming convention typically used for automated archiving or professional media production. 1. The Date Stamp: 091522