Why specifically x265 HEVC ? Because 300 is a nightmare to encode. The film is 90% "digital grain" (noise added in post to make the Viper camera look like film). Grain destroys compression algorithms.
Because this uses the codec, some older players might struggle. Use these tools for the best results: 300 2006 open matte 1080p webdl x265 hevc 1 best
This specific version of 300 (2006) is a high-quality "Open Matte" release that offers a unique viewing experience compared to the standard theatrical widescreen version. What is "Open Matte"? Why specifically x265 HEVC
: It typically fits a standard 16:9 (1.78:1) television or monitor without the large black bars found on theatrical Blu-rays. New Visual Depth Grain destroys compression algorithms
Zack Snyder’s 300 is a landmark of visual style, famously defined by its "Crush City" high-contrast aesthetic and heavy film grain. While the theatrical 2.39:1 widescreen ratio is the director's intended vision, a niche but dedicated community favors the version for its unique "full-screen" impact on modern 16:9 displays. What is "Open Matte"?
: The ideal balance for this film’s heavy grain and stylized "crushed" blacks. Source (WEB-DL)