003221mp4 -

: This will tell you exactly when the footage was captured.

: The name of the folder where the file is stored (e.g., "DCIM," "100MEDIA," or "Downloads") often provides the biggest clue to its origin. Security Note 003221mp4

: Many security and automotive cameras save clips using sequential numbering. "003221" would simply be the 3,221st clip recorded on the device's storage card. : This will tell you exactly when the footage was captured