: This is a "Web Download." It is a lossless rip from a streaming service (like Disney+), meaning the video wasn't re-encoded from the source.
: It supports six channels of audio (center, left, right, two surrounds, and a subwoofer). subtitle Eternals.2021.1080p.WEB-DL.DDP5.1.H.26...
✨ : This specific file version is often considered the "standard" high-quality digital copy, balancing file size with great visual clarity. : This is a "Web Download
The "subtitle" prefix suggests a focus on the external or embedded text files: : Likely the format of the subtitles included. subtitle Eternals.2021.1080p.WEB-DL.DDP5.1.H.26...
If you tell me of this release you want to write about—like how to sync the subtitles or a comparison of WEB-DL vs. BluRay—I can help you flesh out those sections.