No watermarks (usually), no out-of-sync audio, no sudden bitrate drops. It’s indistinguishable from watching it legally on VMAX itself.

Standing for High Efficiency Video Coding (also known as H.265). This is a modern compression standard. It allows the file to maintain high visual quality (1080p) while having a significantly smaller file size compared to the older AVC (H.264) standard.

Wow.Mani.S01E01.Ep01.1080p.VMAX.WEB-DL.HEVC.-CM...

WEB-DL files are generally the "cleanest" versions available. They do not have on-screen watermarks (like "TVRip" or "HDTV" files might) and they include the original digital metadata.