Parasomnia
2025
Lost Not Forgotten Archives: The Majesty Demos (1985-1986)
2022
A View From The Top Of The World
2021
Distance Over Time (Bonus track version)
2019
Lost Not Forgotten Archives: Distance Over Time Demos (2018)
2018
The Astonishing
2016
Dream Theater
2013
A Dramatic Turn of Events
2011
Black Clouds & Silver Linings
2009
Black Clouds & Silver Linings (Special Edition)
2009
Systematic Chaos
2007
Octavarium
2005
Lost Not Forgotten Archives: Train of Thought Instrumental Demos (2003)
2003
Train of Thought
2003
Six Degrees of Inner Turbulence
2002
Metropolis, Pt. 2: Scenes from a Memory
1999
Falling into Infinity
1997
Lost Not Forgotten Archives: The Making of Falling Into Infinity (1997)
1997
Lost Not Forgotten Archives: Falling Into Infinity Demos, 1996-1997
1997
Lost Not Forgotten Archives: Awake Demos (1994)
1994
Awake
1994
Images and Words
1992
Lost Not Forgotten Archives: When Dream And Day Unite Demos (1987-1989)
1989
When Dream And Day Unite
1989