A 4K (2160p) mp4 should be a large file. If it’s only a few KB, it might be a corrupted file or a shortcut.
Based on the naming convention, this file likely originated from one of three sources: Download 2160 119 Nov132022 mp4
This is usually a timestamp (1:19 AM/PM) or a sequence number assigned by the device. A 4K (2160p) mp4 should be a large file
Many NVR (Network Video Recorder) systems export clips using the resolution and date as the primary title. Download 2160 119 Nov132022 mp4
This often refers to the resolution . 2160p is the technical shorthand for 4K Ultra HD .