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.

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. g4_0123.mp4

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: Many DVR and NVR systems (such as those

Brands like Garmin or VIOFO often use alphanumeric strings to categorize locked or continuous recording files. g4_0123.mp4

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