| Remixes: | ||||
| Reflection (CD, Album) | Step To The New World ... | Onenation | 2003 | |
| Crystallized (CD, Album) | At The Party (Reworked... | Onenation | 2006 | |
| Production: | ||||
| Will (CD, Maxi) | Just Trust In Your Lov... | SMEJ Associated Records | 2002 | |
| 歌バカ 10th Anniversary Complete Single Collection '95 - '05 (2xCD, Album) | Style | DefSTAR Records | 2005 | |
| Best ~Second Session~ (Album) ◄ (5 versions) | D.D.D. Feat. Soulhead | Rhythm Zone ... | 2006 | |
| Crystallized (CD, Album) | Onenation | 2006 | ||
| Appears On: | ||||
| True (CD, Album) | Just Trust In Our Love... | SMEJ Associated Records | 2002 | |
| Reflection (CD, Album) | Onenation | 2003 | ||
| SENTIMENTALovers (CD, Album) | Jealousy, Style | DefSTAR Records | 2004 | |
| D.D.D. (CD, Maxi, Ltd) | Rhythm Zone | 2005 | ||
| 歌バカ 10th Anniversary Complete Single Collection '95 - '05 (2xCD, Album) | Style | DefSTAR Records | 2005 | |
| Best ~Second Session~ (CD, Album + DVD-V) | D.D.D., D.D.D. | Avex Taiwan Inc. | 2006 | |
| Black Cherry (Album) ◄ (4 versions) | 月と太陽, 月と... | Rhythm Zone ... | 2006 | |
| Crystallized (CD, Album) | One More Time (Reworke... | Onenation | 2006 | |
| Out Works & Collaboration Best (CD, Comp) | XXX Feat. Koda Kumi | Rhythm Zone | 2009 | |