: This stands for "Web Download." It means the file was losslessly ripped directly from an official streaming platform (such as a Korean VOD service) rather than being recorded from a screen (CAM) or re-encoded from a TV broadcast (HDTV). It offers clean video and crisp audio. Korean : Indicates the original language track.
The x265 codec can compress video data up to than H.264 without sacrificing visual fidelity. For a atmospheric film like Mound Visibility —which relies heavily on dark, foggy scenes and subtle shadow details—traditional compression often introduces blocky artifacts or color banding. The advanced algorithms in x265 handle these complex visual gradients smoothly. Advanced Coding Tree Blocks mound visibility 2022 720p webdl korean x265 better
Technical notes:
Subtitle & Audio Handling