Two great videos in Portuguese, made by @rafaelsouzams (Canal WINchester on YouTube).
If you don't speak Portuguese, YouTube can translate and auto-generate subtitles in most languages, and did a good job here. Don't forget the playback speed control in YouTube! (These are useful for my videos, too!)
This brand new one covers what's new in Directory Opus 13:
And this slightly earlier video is a more general introduction to Opus:
