The file might be corrupted or missing a "header." This often happens with interrupted recordings or recovered files. You can try repairing it using tools like Fix.Video or Untrunc . 3. Safety Precautions
Before opening, run the file through an antivirus or upload it to VirusTotal to ensure it isn't malware disguised as a video. Ajb08406 mp4
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 . The file might be corrupted or missing a "header