remastering

/R IY1 M AE0 S T ER0 IH0 NG/
verb
  1. 1

    To produce a new version of a recording by remixing the original master recordings.

  2. 2

    To create a new master copy by enhancing sound or picture quality of an older recording.

  3. 3

    To produce a new version of a video game with updated graphics, often re-recorded music, and added features and content.

noun
  1. 1

    The production of a new version of a recording by remixing the original master recordings.

  2. 2

    The new version so produced.

Source: https://en.wiktionary.org/wiki/remaster, https://en.wiktionary.org/wiki/remastering