So, putting it all together, "021616-097-carib-1080p.mp4" likely refers to a video file:
or physical cold storage, and keep low-resolution proxies for quick editing. Transcoding 021616-097-carib-1080p.mp4
This is a serial number or production code. In massive databases, titles often overlap, so unique ID numbers prevent "file collisions" where one file might accidentally overwrite another. So, putting it all together, "021616-097-carib-1080p