Automated surveillance or telemetric systems often use alphanumeric strings (e.g., "g096") for clip identification.
Ubuntu 20.04, QGC 4.2, cannot connect raw video - QGroundControl g096.mp4
Files named in this format are often generated when a camera is set to "overcrank" (shoot more frames than it plays back) to create a slow-motion effect. "g096") for clip identification. Ubuntu 20.04