: This represents the date the file was recorded or uploaded: May 16, 2021 .
: The standard digital multimedia container format used to store video and audio. Interest Point: The Rise of AV1 PQPlayWithCum20210516 230411 279 Av1 360p mp4
: This indicates the resolution is Standard Definition (SD) , which is often used to save data or for faster loading on mobile devices. : This represents the date the file was