Tracks 1-10 to 1-12, 1-17 to 1-25, 1-30, 1-31, 1-33, 1-34, 2-1, 2-2, 2-4, 2-5, 2-16 to 2-18, 2-25 to 3-2, 3-10 to 3-13, 4-21, 4-22, 4-25, 4-43, 4-44, 4-46, 4-48 are in mono, all other tracks in stereo.