Meaning of rerecording

re•re•cord•ing

Pronunciation: (rē"ri-kôr'ding), [key]
— n. Motion Pictures.
  1. the preparation of the final sound track of a film or video production, including the mixing of sound effects and dialogue, the recording of additional dialogue, and the addition of music.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.