The source. This was "downloaded" directly from a streaming service (like Netflix or Disney+), meaning no TV logos or ads.
: This stands for "Web Download" and suggests that the video was downloaded directly from a website, likely a streaming service or a site hosting video content. WEB-DL videos are typically of higher quality than traditional downloads from peer-to-peer networks because they are sourced directly from official servers. LOST.2023.720p.WEB-DL.AAC.5.1.ESub.x264-HDHub4u...
Notes:
Allows casual collectors to store hundreds of titles on a modest external hard drive. The source