: This suffix usually indicates a duplicate download ; the same file was likely already present in your destination folder when this one was saved. How to Play or Manage This File
: You can check the "Properties" (Windows) or "Get Info" (Mac) on the file to see the exact bitrate and duration, which determines the actual video quality. MP4 files explained: How to open and use - Adobe 12242127-720p (2).mp4
Based on the components of the filename, here is a technical "review" or breakdown of what this file represents: Technical Specifications : This suffix usually indicates a duplicate download
: This is a standard MPEG-4 Part 14 digital multimedia container format. It is highly compatible with nearly all modern devices, including smartphones, PCs, and smart TVs. and smart TVs.