Remaster

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A remaster is a change in the sound or image quality of previously created forms of media, whether audiophonic, cinematic, or videographic. The resulting product is said to be remastered. The terms digital remastering and digitally remastered are also used.

In a wider sense, remastering a product may involve other, typically smaller inclusions or changes to the content itself. They tend to be distinguished from remakes, based on the original.