: Likely means the file is optimized for mobile devices or formatted for a "portable" media player that doesn't require installation.
The term movi is a truncated abbreviation for "movie," likely due to character limit constraints on older file systems (such as FAT32). The term portable is the most significant signifier in this string. In the context of 2009 media, "portable" usually referred to encoding settings optimized for handheld devices of the time, such as the PlayStation Portable (PSP), iPod Classic, or early smartphones. This implies a specific mode of consumption: media detached from the living room television, viewed on small, low-resolution screens during transit. lafontedesneiges2009480px264esubkatmovi portable
The string you provided, "," appears to be a specific filename for the 2009 French short film La Fonte des neiges (English title: Thawing Out The filename indicates the following technical details: : Likely means the file is optimized for