The naming convention in your query (e.g., "PL.1080p.BluRay.DDP5.1") suggests a digital file release with Polish audio/subtitles, high-definition video, and Dolby Digital Plus 5.1 surround sound. Episode Overview: " End of Honor " : August 31, 2018.
: DDP5.1 (Dolby Digital Plus) with a Polish (PL) language option. J.R.S01E05.End.of.Honor.PL.1080p.BluRay.DDP5.1....
: BluRay (physical disc source) ripped to 1080p resolution. The naming convention in your query (e