Multi.1080p.r-mg.part1.rar: T0a2022

This is usually a shorthand code or abbreviation for the title of the content.

This is the first segment of a compressed archive. t0a2022 MULTi.1080p.R-MG.part1.rar

This indicates the file contains multiple audio tracks (often several different languages). This is usually a shorthand code or abbreviation