: Indicates the source was a high-quality stream downloaded from a digital service (like Netflix or Amazon). x264 : The video compression codec used to create the file.
If you are looking at this specific string, here is what the technical tags mean: OpenMarriage2018480pWEB-DLx264ESubthemoviesflixcxmkv
: A watermark or tag for the specific site that hosted or encoded the file. : Indicates the source was a high-quality stream