: Right-click the file and select Properties (Windows) or Get Info (Mac). Look at the "Origin" or "Camera" section to see what device created it.
To help you review the content, here are common ways to identify what that specific file might be: Common Sources for "G4" Filenames g4_0139.mp4
: Certain DJI or Autel flight logs or cached video previews occasionally use similar alphanumeric strings. How to Review the File : Right-click the file and select Properties (Windows)
: Likely a low-resolution proxy or a very short "event" clip from a dashcam. g4_0139.mp4