: Confirms the file originated from or was processed by WhatsApp .
: The file extension, representing the MPEG-4 Part 14 container format. Key Technical Features of the File WhatsApp media file naming convention - Forensic Focus VID-20220921-WA0051mp4
: A sequential counter for that specific day, meaning this was the 51st video saved to your WhatsApp media folder on that date. : Confirms the file originated from or was