The REDO command redoes the last editing action (cut, paste, or delete) which was undone with the UNDO command. REDO should immediately follow UNDO; otherwise, editing actions performed after UNDO (and before a corresponding REDO) will be lost when the REDO command is issued. The position of the media after a REDO is 0.

Multiple REDO operations are permitted, corresponding to the number of editing operations that have been previously undone with the UNDO command.