Many digital cameras use a sequence of numbers (e.g., YYMMDD or a simple counter) followed by the .mp4 extension.
Where the file was saved (e.g., a folder named "DCIM," "REC," or "DASHCAM") usually reveals the source device. 22601mp4
Open the file using a universal player like VLC Media Player , which can handle almost any .mp4 encoding and show you technical information about the video codec used. Many digital cameras use a sequence of numbers (e
If you downloaded this file from an untrusted source or an unexpected email attachment, do not open it. Randomly named .mp4 files can sometimes be used to deliver malware through vulnerabilities in outdated media players. a folder named "DCIM
Since the name itself doesn't provide a description, you can identify what's inside by checking the following: