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Dream Theater has spent over three decades at the forefront of the "prog" scene. Their discography is a journey through different eras, marked by lineup changes (notably the transition from Mike Portnoy to Mike Mangini, and the recent, heralded return of Portnoy) and stylistic shifts. 1. The Formative Years (1989–1994) The raw, Rush-influenced debut. Their discography is a journey through different eras,
The complete official studio discography of Dream Theater consists of 16 albums released between 1989 and 2025
: Their highest-selling album, featuring "Pull Me Under" .