Pumpa : Poslouchate Vetrnik 3 ( Listening to Pinwheel (Musical Radio Show) ) , Supraphon 1987, bass guitar, [sampler]
Pumpa : Whiskey & fazole ( Whiskey & Beans ) , Monitor 1991, bass guitar, [sampler]
R-Force : Ja mam cas/Big City/Cerna Lady , demo 1993, bass guitar, [single] , background vocal, [single]