| 1 | I Don't Know Why (radio edit) | Moony | — |
| 2 | I Don't Know Why (Viale & DJ Ross radio cut) | Moony | — |
| 3 | I Don't Know Why (Viale & DJ Ross remix) | Moony | — |
| 4 | I Don't Know Why (Viale & Salsotto mix) | Moony | — |
| 5 | I Don't Know Why (Jerome D'Isma-Ae remix) | Moony | — |
| 6 | I Don't Know Why (Jerome D'Isma-Ae radio edit) | Moony | — |
| 7 | I Don't Know Why (Phunk Investigation remix) | Moony | — |