Empires of Eden • Architect of Hope 2015 MelodicRock Records (Track 3 only)

Empires of Eden Channeling the Infinite (Track 6 Only, Guest Solo, "Cyborg") Music Buy Mail 2012

Voz • Shadows of Death Music Buy Mail 2012

Jon Oliva's Pain Maniacal Renderings AFM 2006

Jon Oliva's Pain Straight Jacket Memoirs (EP) AFM 2006

Millenium The Best Of... And More Frontiers 2005

Millenium • Jericho Metal Heaven 2004

Teer • Bullets and Beer Independent Demo 2004

Armageddon Over Wacken 2003 (Track 11, Disc 2 only) Crash Music 2004

Millenium • Hourglass Frontiers 2000

Jorn • Starfire (Track 3 only) Frontiers 2000

Millenium • Angelfire Frontiers 1999

Teer S/T • (Blue CD) Frontiers 2000

Teer • S/T Independent 1996