HEVC stands for High Efficiency Video Coding , also known as H.265 . It's the successor to the widely-used H.264 (or AVC) codec. Its main advantage is that it can double the compression efficiency of its predecessor. This means an HEVC file can offer the same visual quality as an H.264 file at roughly half the file size . For a 200MB file, HEVC is the star that makes such a small size possible without completely sacrificing picture quality.

user wants a detailed article about "Pati Patni Aur Woh -2019- Hindi WEB-DL HEVC 200...". This seems to be a specific release of the 2019 Hindi film. The user might be looking for information about this particular digital release, including its technical details, codec (HEVC), file size, and other related aspects.