that’s the structure of a bluray disk. It includes all that the player needs to play it (e.g. menus, chapters, etc). The STREAM folder contains the actual video, probably in a .m2ts file (you can convert it to mkv using ffmpeg or similar tools)

there is for sure a lot of snarky students who believe they are too clever, but it does happen. There are tons of awful teachers out there. I had a science teacher who refused to acknowledge that heat and temperature were no the same

I think Saru is the best that came out of Discovery. I think the character will rank high in Trek’s Pantheon for a long time.