This stands for Web Download . It means the file was legally captured from a streaming service (like Netflix or HBO Max) without being re-encoded, typically offering better quality than a "WebRip".
A highly customizable player for Windows that handles older formats like .avi very efficiently. Codec Packs (If using Windows Media Player): Zolza.2022.PL.WEB-DL.XviD-K83.avi
An older video codec commonly used for .avi files to maintain a balance between file size and quality. This stands for Web Download