Saxon will release a new 14-disc set called “The Solid Book Of Rock” on August 4. The effort will come with “Solid Ball Of Rock,” “Forever Free,” “Dogs Of War,” “Unleash The Beast,” “Metalhead,” “Killing Ground,” “Lionheart,” “The Inner Sanctum,” and “Into The Labyrinth,” as well as eight bonus tracks, two bonus CDs including: “Classics…