If this is a personal video (like a security camera clip or a screen recording), it's best to rename it to something recognizable: Select the file and press (Windows) or Enter (Mac).
Right-click the file, select Properties , and click the Details tab. You may find the "Date Created," which can help you remember when it was recorded. On Mac: Right-click and select Get Info .
Change "Ajb08406" to a descriptive name (e.g., Vacation_Clip_01.mp4 ). Ajb08406 mp4
A real MP4 should typically be several megabytes (MB) or gigabytes (GB). If the file is only a few kilobytes (KB), it is likely a broken link or a shortcut, not an actual video. 4. Renaming and Organizing
Since the name is non-descriptive, you can check the file's metadata to learn about its origin: If this is a personal video (like a
If you found this file online or received it from an unknown source:
The .mp4 extension is a universal container format compatible with almost all devices. On Mac: Right-click and select Get Info
Use VLC Media Player or Windows Media Player.