Appears on releases
| # | Title | Length | Track Artist | Release Title | Release Artist | Release Group Type | Country/Date | Label | Catalog# |
|---|---|---|---|---|---|---|---|---|---|
| Official | |||||||||
| 1.4 | 方舟 | 1:43 | 石井妥師 | DARKER THAN BLACK Extra Soundtrack | 石井妥師 | Album + Soundtrack |
| Aniplex | ANZB-9486 |
| Pseudo-Release | |||||||||
| 1.4 | Hakobune | 1:42 | 石井妥師 | DARKER THAN BLACK EXTRA SOUNDTRACK | 石井妥師 | Album + Soundtrack | |||