The .mkv file format allows for multiple audio tracks and subtitles to be included in a single file, perfectly supporting the dual-audio requirement. The Appeal of the Dual Audio (Hindi-Chinese) Feature
This is the unavoidable section. Searching for almost exclusively leads to torrent websites, cyberlockers, and piracy portals. Red Cliff 2008 Dual Audio Hindi 720p BluRay.mkv
720p (High Definition), typically 1280x720 pixels. Source: BluRay—ripped from high-quality physical media. and piracy portals. 720p (High Definition)