1 The Root Of All Evil 8:072 The Answer Lies Within 5:203 These Walls 6:594 I Walk Beside You 4:295 Panic Attack 7:166 Never Enough 6:337 Sacrificed Sons 10:428 Octavarium 24:00Участники записи альбома Arranged By [Strings], Conductor [Strings] – Jamshied SharifiArt Direction, Design, Illustration, Concept By – Hugh SymeArtwork [Atlantic Art Producer] – Rob Gold (2)Bass – John MyungBooking [Europe/South America/Asia] – Derek KempBooking [US] – Steve Martin (18)Contractor [Orchestral] – Jill Dell&"AbateDrums, Vocals, Percussion, Concept By – Mike PortnoyEngineer – Doug OberkircherEngineer [Additional Studio Assistance Hit Factory] – Bert BaldwinEngineer [Assistant And Pro Tool, Quad Studio] – Keith GaryEngineer [Assistant, Hit Factory] – Colleen CulhaneEngineer [Assistant, Hit Factory] – Kaori Kinoshita (2)Engineer [Assistant, Hit Factory] – Ryan SimmsEngineer [Second Assistant, Quad Studio] – Will HensleyGuitar, Vocals – John PetrucciKeyboards, Other [Continuum], Lap Steel Guitar – Jordan RudessLyrics By – James LaBrieLyrics By – John PetrucciLyrics By – Mike PortnoyManagement – Frank SolomonMastered By – George MarinoMixed By – Michael H. BrauerMusic By – Dream TheaterPhotography By – Colin Lane (2)Producer – John PetrucciProducer – Mike PortnoyVocals – James LaBrie