Oh, I can not praise enough Brazilian Mutilator demo days around 1985/86. What a great stuff. Especially great are the barkings of singer Silvio SDN. Unfortunately the singer left the band (made a new group Armmagedon) and Mutilator took change to more boring Thrash Metal style. So their debut "Immortal Force" (1987) looks cool with embossed cover but is boring to listen to.
On this CD we have: "Grave Desecration" demo 1985, Live 16/8/86, Live 20/9/86 and 29/9/86. "Warfare Noise" compilation LP tracks are missing