| # | SP/EP Title | Release Date | Label | UK | USA |
| 1. | Day Time | 26.06.2000 | Liquid | | |
| | Day Time | 06.11.2000 | AM:PM | 48 | |
| | Daytime (vocal mixes) | 06.11.2000 | Polydor | | |
| 2. | Into The Night | 30.07.2001 | Liquid | | |
| | Into The Night (Symphony Of Strings instrumental mix, D'Tech remix) | 04.02.2002 | Nebula | | |
| 3. | Take Me Away (Into The Night) | 25.02.2002 | Liquid | 15 | |
| 4. | Into The Night (Coast To Coast remix) | 04.03.2002 | Nebula | | |
| | Into the Night (Gabriel & Dresden remixes) | 18.03.2002 | Nebula | | |
| | (Take Me Away) Into The Night (Coast 2 Coast vocal remix, Symphony Of Strings remix, Gabriel & Dresden "6 Deep" dub) | 06.05.2002 | Nebula | | |
| | (Take Me Away) Into The Night (4 Strings remix) | 13.05.2002 | Virgin | 67 | |
| 5. | Diving | 24.06.2002 | Zeitgeist | 38 | |
| | Diving (D'Tec remix) | 08.07.2002 | Nebula | | |
| | Diving (Minimalistix remixes) | 15.07.2002 | Liquid | | |
| | Diving (Hiver & Hammer's "Different Gear" remix, Cosmic Gate remix) | 29.07.2002 | Zeitgeist | | |
| | Diving / Take Me Away (Into The Night) (RMB vocal mix) | 02.09.2002 | Nebula | | |
| 6. | Carlo Resloot vs 4 Strings
& Carlo Resoort | 04.11.2002 | Liquid | | |
| 7. | Let It Rain | 30.06.2003 | Nebula | 49 | |
| | Let It Rain (E-Craig remix, Driftwood remix, Mystery remix) | 04.08.2003 | Liquid | | |
| 8. | Album Sampler (Part 2) (Fly Away / Revelation / Summer Sun / Eastern Vibe) | 29.09.2003 | Liquid | | |
| 9. | Album Sampler (Part 1) (High On Life / Besides Us / Believe / Into The Night (Coast To Coast remix)) | 03.11.2003 | Liquid | | |
| 10. | Back To Basics / Summersun (DJ 4 Strings remix) | 16.02.2004 | Liquid | | |
| 11. | Turn It Around | 10.05.2004 | Ultra | 50 | |
| | Turn It Around (Sandler remixes) | 28.06.2004 | Liquid | | |
| 12. | Come Closer | 06.12.2004 | Alpha Plus | | |
| 13. | Love Is Blind | 11.04.2005 | Liquid | | |
| 14. | Until You Love Me | 18.04.2005 | Ultra | | |
| 15. | Sunrise | 20.06.2005 | Liquid | | |
| 16. | Desire | 19.09.2005 | Liquid | | |
| 17. | Sunrise (Stoneface & Terminal remix, full vocal club mix, DJ 4 Strings mix) | 12.12.2005 | Alpha Plus | | |
| 18. | Jewel | 22.05.2006 | Liquid | | |
| 19. | Mainline | 23.10.2006 | Liquid | | |
| 20. | Into The Night 2006 | 04.12.2006 | Nebula | | |
| 21. | Curious / Desire | 23.04.2007 | Alphabet City | | |
| 22. | Catch A Fall | 24.03.2008 | Alpha Plus | | |
| 23. | Take Me Away (Into The Night) (2008 mixes) | 12.05.2008 | Liquid | | |
| 24. | The Way It Should Be
vs DJ Shaine | 13.10.2008 | Liquid | | |
| 25. | Catch A Fall | 20.10.2008 | Maelstrom | | |
| 26. | Let Me Take Your Breathe Away | 28.01.2009 | Liquid | | |
| 27. | Take Me Away Again | 20.04.2009 | Liquid | 59 | |
| 28. | Music / Music Saved My Life / Agent Of Chaos / Stroboscopic
& Fabio Stein | 11.11.2009 | Liquid/Reset | | |
| 29. | Daytime 2010 | 21.04.2010 | Liquid | | |
| 30. | Sundown / Fractured 2010
& Mark Sherry | 04.08.2010 | Liquid/Reset | | |
| 31. | Living Colors | 29.07.2014 | Hussle | | |
