 ADV began releasing Neon Genesis Evangelion: Platinum Edition on DVD in 2004.  Each episode was fully restored visually by Gainax as part of an Evangelion  renewal project, cleaning up and slightly lengthening the animation in each  episode. Also, the original stereo sound mix for both the Japanese and  English language versions were remixed into 5.1 surround sound. Additionally,  bits of dialogue in the English language version were rerecorded. Specific  examples of this include references Misato makes to "brain damage" that are  replaced with "mental contamination" in order to correct a translation error  in the original dub, and the dialogue played over the episode previews was  completely redone to fit their revised lengths.