Track listing:
1. The Root of All Evil – 8:25 (music by Dream Theater, lyrics by Portnoy)
VI. Ready
VII. Remove
2. The Answer Lies Within – 5:33 (music by Dream Theater, lyrics by Petrucci)
3. These Walls – 7:36 (music by Dream Theater, lyrics by Petrucci)
4. I Walk Beside You – 4:29 (music by Dream Theater, lyrics by Petrucci)
5. Panic Attack – 8:13 (music by Dream Theater, lyrics by Petrucci)
6. Never Enough – 6:46 (music by Dream Theater, lyrics by Portnoy)
7. Sacrificed Sons – 10:42 (music by Dream Theater, lyrics by LaBrie)
8. Octavarium – 24:00 (music by Dream Theater)
I. Someone Like Him (Lyrics by Petrucci)
II. Medicate (Awakening) (Lyrics by LaBrie)
III. Full Circle (Lyrics by Portnoy)
IV. Intervals (Lyrics by Portnoy)
V. Razor's Edge (Lyrics by Petrucci)
Credits:
Band:
James LaBrie – Vocals
John Myung – Bass
John Petrucci – Guitar, backing vocals
Mike Portnoy – Drums, percussion and backing vocals
Jordan Rudess – Keyboard, Continuum and lap steel guitar
Other:
Strings arranged and conducted by Jamshied Sharifi
Jill Dell'Abate - Orchestral Contractor
Orchestra on Sacrificed Sons and Octavarium:
Concert Master:
Elena Barere
Violins:
Katharine Fong
Ann Lehmann
Katherine Livolsi-Stern
Laura McGinniss
Catherine Ro
Ricky Sortomme
Yuri Vodovoz
Violas:
Vincent Lionti
Karen Dreyfus
Cellos:
Richard Locker
Jeanne LeBlanc
Flutes:
Pamela Sklar
French Horns:
Joe Anderer
Stewart Rose
String Quartet on The Answer Lies Within:
Elena Barere - First Violin
Carol Webb - Second Violin
Vincent Lionti - Viola
Richard Locker - Cello
Recorded between November 2004 - February 25, 2005 at The Hit Factory in New York City
Produced by John Petrucci and Mike Portnoy
Artwork by: Hugh Syme
Release date: 7 June 2005