WHEN DREAM AND DAY UNITE (1989)
IMAGES AND WORDS (1992)
AWAKE (1994)
FALLING INTO INFINITY (1997)
METROPOLIS PT. 2: SCENES FROM A MEMORY (1999)
SIX DEGREES OF INNER TURBULENCE (2002)
TRAIN OF THOUGHT (2008)
OCTAVARIUM (2005)
SYSTEMATIC CHAOS (2007)
BLACK CLOUDS & SILVER LININGS (2009)
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EP
A CHANGE OF SEASONS (1995)
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LIVE
LIVE AT THE MARQUEE (1993)
ONCE IN A LIVETIME (1998)
LIVE SCENES FROM NEW YORK (2001)
LIVE AT BUDOKAN (2004)
SCORE (2006)
CHAOS IN MOTION (2008)
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SINGLES
ANOTHER DAY (1992)
THE SILENT MAN (1994)
LIE (1994)
HOLLOW YEARS (1997)
THROUGH HER EYES (1999)