"Dual" means the file contains two separate audio tracks that the user can switch between using a media player (like VLC or MPC-HC). Usually, this includes the Original Japanese Audio (for purists who want to hear Shun Oguri and Takayuki Yamada’s original performances) and the Hindi Dubbed Audio (for casual viewing).
Shun Oguri, Takayuki Yamada, Kyōsuke Yabe, and Meisa Kuroki
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