This stands for "Blu-ray Disc Rip." It means the video was encoded directly from a retail Blu-ray source, usually offering high quality compared to "WebRips" or "DVDrips."
This indicates that the file includes Polish audio or subtitles (Polski). Irreductible.2022.PL.BDRip.x264-K83.mkv
If you are looking at this file, you are essentially getting a high-quality copy of a hit French comedy with Polish language options. It’s a great pick if you enjoy "fish out of water" stories or satires about office culture and government red tape. This stands for "Blu-ray Disc Rip