 For the DVD release, Lucas and his team made changes that they stated would ensure continuity between "The Empire Strikes Back" and the then-recently released prequel trilogy films.The most noticeable of these changes was replacing the stand-in used in the holographic image of the Emperor (with Clive Revill providing the voice) with actor Ian McDiarmid providing some slightly altered dialogue.With this release, Lucas also supervised the creation of a high-definition digital print of "The Empire Strikes Back" and the original trilogy's other films.