: This indicates it was the first video recorded that day, or the first part of a split file.
If you are looking at this file on your hard drive and trying to remember what it is, the name itself gives you several concrete clues: 20211108-1_1080p.mp4
: If you downloaded this file from an unknown source on the internet, run it through a security scanner like VirusTotal before opening it. 📥 Looking for a Downloaded Video? : This indicates it was the first video
: This is the date the file was created or recorded (November 8, 2021). : This is the date the file was
If this is a file you recently downloaded from a video platform and it failed to name itself properly, you may need to use a dedicated tool to fetch the correct metadata. You can check out options like the YT Video Downloader on the Microsoft Store or the standard YTD Video Downloader to properly grab and label high-quality videos.