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Disc1
| 1 | The Riddle (Vocal Radio Edit) | Gigi D’Agostino | 3:52 |
| 2 | The Riddle (J&B Original Trans Mix) | Gigi D’Agostino | 6:22 |
| 3 | The Riddle (J&B Original Dub Mix) | Gigi D’Agostino | 5:45 |
| 1 | The Riddle (Vocal Radio Edit) | Gigi D’Agostino | 3:52 |
| 2 | The Riddle (J&B Original Trans Mix) | Gigi D’Agostino | 6:22 |
| 3 | The Riddle (J&B Original Dub Mix) | Gigi D’Agostino | 5:45 |