This folder is taking 547GB of space. Many of the subfolders contain a video file about 1GB in size. What is the purpose of the video files?
There are no video files, only symbolic links (i.e. shortcuts). They don't take up space. Whatever tool you're using to measure disk space is incorrect.
I see. Viewing the network drive in Windows, shows the video files. But when viewing the same folder through the Asustor Portal, they're not there. And the comskip folder shows only 125mb of space.