| "Always and Always 2 Twin Pack" released on 5/21/08 (Vap, Inc.) |
| "Always: Sunset on Third Street [Regular Edition]" released on 6/9/06 (Vap, Inc.) |
| "Always: Sunset on Third Street [Special Edition]" released on 6/9/06 (Vap, Inc.) |
| "University of Laughs [Standard Edition]" released on 5/27/05 (Toho) |
| "University of Laughs [Special Edition]" released on 5/27/05 (Toho) |
| "Returner [Standard Edition]" released on 3/7/03 (Amuse Soft Entertainment) |
| "Returner [Premium Edition]" released on 3/7/03 (Amuse Soft Entertainment) |