Ensure modern codecs (H.264/H.265) are installed, or re-render using software like Handbrake to ensure proper MP4 encoding.
The file may report being "damaged" or show a black screen, even if the file size suggests data is present.
If using a Dahua system, ensure you are exporting to "AVI" specifically if MP4 fails, or use the proprietary SmartPlayer provided by the VMS.
The best workaround for this issue is to use VLC, which handles container/codec inconsistencies better than native Windows tools.
If the file is actually an AVI disguised as an MP4, players may fail to read the header properly. 3. Recommended Actions & Troubleshooting
The IMOG-230.avi.mp4 file likely contains valid data but is packaged in a way that standard Windows/QuickTime players cannot interpret, commonly due to surveillance VMS export errors. MP4 export bug - Adobe Community
