This was mixed in Dolby Surround & released in stereo with Pro Logic encoding. I decoded it into multi-channel & then applied virtual surround for this stereo mix-down. This gives 3D surround with ordinary stereo headphones. I was very surprised how this turned out as the source files were only 128kbps CBR LAME MP3s. It’s not the most detailed quality, but the surround more than makes up for the slight fuzziness. It’s a shame the sequel never happened.