DD5.1 means it features Dolby Digital 5.1 surround sound.
PL indicates it likely has Polish audio or hardcoded subtitles. Troll.2022.PL.480p.WEB-DL.XviD.DD5.1-K83.avi
XviD.avi is an older video container and codec, often used for compatibility with legacy devices. Troll.2022.PL.480p.WEB-DL.XviD.DD5.1-K83.avi
