20230122035030.mp4 -

: Formally known as MPEG-4 Part 14 , it was first introduced in 2001 based on Apple’s QuickTime format.

: Tools like OBS or Windows Game Bar often default to date-based filenames if a custom title isn't provided. Technical Details of the .mp4 Format 20230122035030.mp4

: Many default camera apps use VID_ or IMG_ followed by this exact timestamp format. : Formally known as MPEG-4 Part 14 ,

While the name is just a label, the .mp4 extension signifies that it is a . 20230122035030.mp4

If the file won't open, use a versatile player like the VLC Media Player which supports nearly all MP4 encoding types.