| A1 | CD, Mixed | Central Station | 2005 |
| FM (Feelin' me) | 12" | ADN Progressive Records | 2004 |
| O | Vinyl, 12" | Extra Wild! | 2002 |
| O (Overdrive) | Vinyl, 12" | Ultra Records | 2001 |
| O (Overdrive) | Vinyl, 12" | Temprogressive | 2001 |
| F (Future Is Now !) | Vinyl, 12" | Red Alert | 2000 |
| X² (Time Is Now) | CD, Maxi-Single | Maddog | 1998 |
| Y (How Deep Is Your Love) | Vinyl, 12" | Perfecto | 1998 |
| Y (How Deep Is Your Love) | CD, Maxi-Single, CD2 | Perfecto | 1998 |
| Y (How Deep Is Your Love) | CD, Maxi-Single, CD1 | Perfecto | 1998 |
| U / Man On The Moon | Vinyl, 12" | Overdose | 1998 |
| X² (Time Is Now) | Vinyl, 12" | Orbit-A | 1998 |
| X² (Time Is Now!) / W (That Sound) | Vinyl, 12" | Overdose | 1997 |
| Y | Vinyl, 12" | Overdose | 1997 |
| Y (How Deep Is Your Love?) | 2 x Vinyl, 12" | Overdose | 1997 |
| X^2 (Time Is Now) / W (That Sound) | Vinyl, 12" | Maddog | 1997 |
| Y (How Deep Is Your Love?) | 2 x Vinyl, 12" | Maddog | 1997 |
| U (I Got A Feeling) / Storm | Vinyl, 10" | Positiva | 1996 |
| U (I Got A Feeling) | CD, Maxi-Single | Labels | 1996 |
| U (The Feeling) (Mixes) | CD, Maxi-Single | Overdose | 1996 |
| U (The Feeling Mixes) | Vinyl, 12" | Overdose | 1996 |
| U (The Feeling Mixes) | Vinyl, 12" | Moonlite | 1996 |
| U | CD, Maxi-Single | Overdose | 1996 |
| X (Remixes) | Vinyl, 12" | Overdose | 1995 |
| U (I Got a Feeling) | Vinyl, 12", Promo | Positiva | 1995 |
| U | Vinyl, 12" | Overdose | 1995 |
| U | Vinyl, 12" | Adrenalin Records | 1995 |
| X | Vinyl, 12" | Overdose | 1994 |
| X | CD, Maxi-Single | Overdose | 1994 |
| X | Vinyl, 12" | Bull & Butcher Recordings | 1994 |
| FM (Feelin' Me) | Vinyl, 12" | Overdose | |
| FM (Feelin' Me) | Vinyl, 12" | ADN Progressive Records | |
| U 2004 | Vinyl, 12" | Overdose | |
| U (I Got A Feeling) | Vinyl, 12", White Label, Promo | Positiva | |
| A1 | CD | Overdose | |
| FM (Feelin' Me) | Vinyl, 12" | Dose | |
| L (Want Your Love) | 12" | Overdose | |
| L (Want Your Love) | Vinyl, 12" | Overdose | |
| O - Overdrive (incl. F - Future Is Now!) | CD, Maxi-Single | EMI Electrola GmbH | |
| F (Future Is Now!) | Vinyl, 12" | Overdose | |
| Y (How Deep Is Your Love) | CD, Maxi-Single | Maddog | |
| O (Overdrive) | Vinyl, 12" | Overdose | |
| S (Outerspace) | Vinyl, 12" | ADN Progressive Records | |
| R (Rock!) | Vinyl, 12" | ADN Progressive Records | |
| R (Rock!) | Vinyl, 12" | Overdose | |
| A1 | 2 x Vinyl, LP | Overdose | |