When you record a video with enabled on a compatible Google Pixel device, your phone doesn't just create one file. Instead, it creates a "dual-file" system to balance immediate usability with high-end processing:
Users often find these files when manually backing up their phones or using third-party file managers. If you see a COVER.mp4 file and notice it looks lower quality than expected, it simply means the "Boost" hasn't finished processing or syncing yet. Cover.mp4
Did you want to know more about this feature, or were you looking for a script to implement a background video named "cover.mp4" on a website? One of my favourite music quotes! | Nick Higgs The Singer When you record a video with enabled on
This is a 1080p, standard-quality video file. It is generated instantly so you can see what you captured, share it quickly, or check the framing without waiting for cloud processing. Did you want to know more about this
It is a generic filename often used by artists or creators for a video cover of a song (e.g., "Misty Cover.mp4").