Dual audio files store two independent audio streams inside a single container (usually an MKV or MP4 file). Viewers can easily toggle between the original English track to hear Schwarzenegger's iconic performance, or switch to a regional dubbed track using standard media players like VLC, MPC-HC, or Plex. What Does "Updated" Mean for Audio?
Rather than wiping away the texture of the movie with aggressive Digital Noise Reduction (DNR), a quality BluRay encode preserves the organic 35mm film grain. This retains the gritty, late-90s cinematic aesthetic intended by the filmmakers. Why Digital Collectors Seek "Updated" Versions endofdays19991080pblurayx264dualaudioh updated
: Note that this was Schwarzenegger's return to the screen after heart surgery, which influenced the darker, more vulnerable tone of his character. Dual audio files store two independent audio streams