 It also incorporates the Greek text published by Westcott and Hort in "The New Testament in the Original Greek" and a literal word-for-word translation.In 1978, the Watch Tower Society began producing recordings of the "New World Translation" on audio cassette, with the New Testament released by 1981 and the Old Testament in three albums released by 1990.In 2004, the NWT was released on compact disc in MP3 format in major languages.