Img_20200330_121317_239.mp4

: You can rename the file (e.g., March_2020_Lockdown_Walk.mp4 ) without damaging the video data, making it much easier to find in the future.

: The file likely contains "EXIF data," which includes the GPS coordinates of where the video was filmed, provided your location settings were active at the time. IMG_20200330_121317_239.mp4

The string of numbers is not random; it follows a specific chronological format: : You can rename the file (e

: A unique serial number or millisecond marker used by the camera software to prevent duplicate filenames. Contextual Significance: March 2020 IMG_20200330_121317_239.mp4