Beyond the image composition, the encoding codec— (High Efficiency Video Coding)—is what makes this specific file superior to older MKV or MP4 versions. 300 is a notoriously grainy film, artificially desaturated to mimic Frank Miller’s graphic novel. Grain is the enemy of compression; it causes macroblocking and pixelation in older codecs like x264.
For archival, acquire the open matte WEB-DL in x264 (larger file, fewer grain artifacts) and compare. For day-to-day viewing, this x265 release is a solid space-saver. 300 2006 open matte 1080p webdl x265 hevc 1 better