: A sequential counter for that specific day, meaning this was the 51st video saved to your WhatsApp media folder on that date.
: 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
: The date the video was saved or processed by WhatsApp, formatted as YYYYMMDD (September 21, 2022). : A sequential counter for that specific day,
: Confirms the file originated from or was processed by WhatsApp . formatted as YYYYMMDD (September 21