If you pause a YouTube video and right click on it you get a pop up menu. On that menu it has an option Stats for Nerds. Love it! If you want to know what they mean I have explained them. Things like dimension you will know so I haven’t explained them all.
Resolution @25 – @ 25 frames per second
Stream host – server which is running video
CPN- Probably Id for European Canon Professional Network
Mime Type – how the internet identifies the type of file. vp9 is an open and royalty free coding format for videos
DASH 244/251 relates to audio. Format 251 Is Opus.
Dropped frame rate: Will affect smooth running and synching of audio and video. Can be caused by drivers, slow computers, internet access…