This is the "release group" or the digital source tag. It identifies the community or platform responsible for encoding and uploading this specific version of the film. Why This Format is Popular

While many enthusiasts chase 4K HDR files, the version of a film like Deep Water remains a "sweet spot" for several reasons:

For those watching on mobile data or in regions with bandwidth caps, a 720p WEB-DL provides a crisp, high-definition experience without burning through an entire month's data allowance in one sitting. The Film Behind the File

This describes the audio codec. AAC (Advanced Audio Coding) is the industry standard for high-quality compressed audio. The "2.0" signifies a stereo setup (Left and Right channels), ideal for headphones or standard TV speakers.