The appended “pHDR” and “mkv” tags further illustrate layering of expectations. HDR (High Dynamic Range) promises superior contrast and color depth—features that enhance visual storytelling, especially for effects-heavy films like Thor. Even when true HDR requires compatible displays and higher-quality encodes, the tag alone signals aspirational quality: the uploader’s attempt to differentiate and market the file. The MKV container is a flexible wrapper that accommodates multiple audio tracks, subtitles, and chapter data—perfect for the dual-audio and metadata-rich package suggested by the filename.