Ensure the user account has read/write permissions for the storage directory. 4. Conversion & Editing

Almost all modern smartphones (Android/iOS) support MP4 playback natively. 3. Troubleshooting "Corrupt" or Missing Files

Use Handbrake (free) or Adobe Media Encoder (paid) to transcode the video.

If you found the file manually but it doesn't appear in your surveillance console, the software's database might need a re-index.