List View > File Size (Size on Disk) Column

The inclusion of an optional file size column when viewing a library in List View, would allow for quick and easy management of larger items in your library.

Resolution & Bitrate helps to narrow this down, but nowhere near as useful as actual file/folder size on disk in terms of managing server disk space.

I 100% agree!!!

You could export the info into a CSV file, and then use that in like Excel

As a biased option, look here: