Usually Japanese audio with English or Chinese hard-subs, or the Hindi/Tamil dubs popular in South Asia.
Based on the .mp4 extension and common "Season 16" digital rips: MPEG-4 (H.264 Video / AAC Audio). Resolution: Typically 480p or 720p (remastered).
The video file typically refers to the second episode of the 16th season of the 1979 Doraemon series (often categorized by Shin-Ei Animation production years).
