Cover.mp4 Apr 2026

If you try to share the video before processing is finished, you are usually sharing the COVER.mp4 preview.

It is a generic filename often used by artists or creators for a video cover of a song (e.g., "Misty Cover.mp4"). Cover.mp4

This is a massive, unprocessed file (often 1GB for every 30 seconds of 4K footage). This file contains the high-dynamic-range data that Google's servers use to "boost" the video's lighting, stabilization, and color. How the Process Works: Upload: Google Photos uploads both files to the cloud. Processing: The "Boost" happens on Google's servers. If you try to share the video before