"Köln 100" (2006) CD "Keeping"
(with Achim Kaufmann, Paul Imm and Alan Jones)

"Keeping" (2006) CD "Keeping"
(with Achim Kaufmann, Paul Imm and Alan Jones)

"Doppelbelastung" (2000) CD "Zeitraum"
(with Marcio Doctor)

"Stigma" (2000) CD "Zeitraum"
(with Marcio Doctor)

"Karin" (1998) CD "Trio"
(with Achim Kaufmann and Ingmar Heller)

"Dr. Nick Riviera" (1997) CD "... All The April Snow"
(solo)

"The Frinkiac" (1996/97) CD "... All The April Snow"
(with David Friedman, Anthony Cox and Wolfgang Haffner)

"Prof. Genessier" (1994) CD "Evocation"
(with Achim Kaufmann, Paul Imm and Alan Jones)