The entire 8.5 hours are narrated by Zachary, who also voices all of the characters. This adaptation also includes events that are not shown in the movie.
John Tenuto from trekmovie.com has reviewed the audiobook here and has nothing but praise for it. “…Quinto shows all his acting abilities in the audio adaptation and he has a thoughtful style as narrator.”
The paperback as well as the audio book are available to buy on Simon & Schuster’s website here.