This is the first time I've used their (DS7608) NVR's, I normally use Digital Watchdog, (DW CUBE or BLADE mostly) their VMS software is really client friendly, works very well, and I can turn it over to a user and not worry about them getting on with it. I also use, or at least used to use...
I use ffmpeg frequently so I ftp'd the stupid Hik .mp4 to my Pi4, ran ffmpeg
ffmpeg -err_detect ignore_err -i NVR220_469876.mp4 -c copy NVR220_469876-ni_fixed.mp4
ftp'd it back to my laptop and it runs fine. I don't know a lot about video files, codecs, etc. but thanks for this.
If someone...