: "MULTi" indicates it includes multiple language tracks (often English and French, given the show's Canadian setting).
: H.264 (also known as AVC), a standard video compression format. Three.Pines.S01E06.MULTi.1080p.HMAX.WEB-DL.H264...
This text is a for a digital copy of a television episode. Specifically, it refers to: : "MULTi" indicates it includes multiple language tracks