One of the biggest challenges for digital evidence professionals is obtaining sample files from DCCTV systems. Developers, Analysts, and Technicians alike can learn so much from mundane sample media files, if they have sufficient information about their source. Of course, there are a slew of challenges, including many of the same that hinder similar efforts in other disciplines.
Let's Tackle This Bear
Although I've tried similar things in the past to no avail, I've recently introduced a new File Sharing Library category for sample DCCTV files. DVR, NVR, Hybrid, IoT devices, Cellular Phones, whatever. DO NOT SHARE EVIDENCE. Consider submitting any testing samples you've created, along with the appropriate info. Or maybe unrelated files that DO NOT contain identifiable faces, which you have permission to share.
It would certainly be helpful for many in the community if we had such a library. Just asking you to consider wrestling this bear with me. You never know, that bear may just become one of our friends one day.