G4_0123.mp4 -

Many DVR and NVR systems (such as those from Lorex, Swann, or Hikvision) auto-save clips using "g" (for group/channel) or "ch" prefixes followed by timestamps or sequence numbers.

DJI and GoPro cameras generate sequential filenames that vary slightly by model but often look like "G0010123.mp4." g4_0123.mp4

Brands like Garmin or VIOFO often use alphanumeric strings to categorize locked or continuous recording files. Many DVR and NVR systems (such as those

Without more context, such as where the file was found or its file size, it is likely a from a digital device rather than a recognizable internet video. In computer science and AI research (such as

In computer science and AI research (such as the UCF101 or Kinetics datasets), video files are often renamed to short codes like "g01_v01.mp4" for easier processing.

Instead, file names following this specific pattern—a letter followed by a number, an underscore, and then a sequence of digits—are commonly associated with: