How to display total duration of a video/audio folder

[lxp]

@pg111

display the total length (duration) of a folder containing video and/or audio files.

These script columns will show the duration:

DurationAV (Duration columns for folders)

This add-in creates three custom columns: DurationAV, DurationAudio, and DurationVideo. Like the built-in column duration, they display the length of audio and video files. Unlike the built-in column, they also work for folders and display the sum …