"Supervised by director Steven Spielberg and renowned sound designer Ben Burtt, Raiders of the Lost Ark has been meticulously restored with careful attention to preserving the original look, sound and feel of the iconic film. The original negative was first scanned at 4K and then examined frame-by-frame so that any damage could be repaired. The sound design was similarly preserved using Burtt's original master mix, which had been archived and unused since 1981. New stereo surrounds were created using the original music tracks and original effects recorded in stereo but used previously only in mono. In addition, the sub bass was redone entirely up to modern specifications and care was taken to improve dialogue and correct small technical flaws to create the most complete and highest quality version of the sound possible while retaining the director's vision. The result is an impeccable digital restoration that celebrates the film and its place in cinematic history."