The file name provided identifies a high-definition, multi-language digital release: Season 1, Episode 9. Resolution: 1080p (Full HD).
WEB-DL (source from a web streaming service like Netflix).
MULTi (Multiple language tracks, typically including the original Japanese and several dubbed versions like English, Polish, and Spanish). Episode 9: Narrative Summary
H.264 (AVC), a standard compression format for high-quality video.