| Missing (Radio Mix) | 3:25 | |
| Missing (Club Mix) | 6:50 | |
| Missing (Rocco Remix) | 6:48 | |
| Missing (Ibiza By Night Remix) | 8:16 | |
| Back Again | 3:44 |
| Title, Format | Label | Cat# | Country | Year | |
|---|---|---|---|---|---|
| Missing (CD, Maxi) | Liquid Recordings | LQ CDM 022 | Netherlands | 2002 | |
| Missing (12") | Zeitgeist | 570530-1 | Germany | 2001 | |
| Missing (12", S/Sided) | Liquid Recordings | LQ 022 | Netherlands | 2001 | |
| Missing (CD, Maxi, Promo) | Zeitgeist | 570 530-2 | Germany | 2001 | |
| Missing (CD, Single) | Zeitgeist | 570 690 2 | Germany | 2001 | |
| Missing (Mac Zimms Remixes) (12") | Spinnin' Records | SP 026 | Netherlands | 2002 | |
| Missing (Remix) (12") | Zeitgeist | 570 566-1 | Germany | 2002 | |
| Missing (Remixes) (12") | Liquid Recordings | LQ022R | Netherlands | 2002 | |
| Missing (The Remixes) (12", Promo) | Liquid Recordings | LQ022R | Netherlands | 2002 | |
| Missing (12") | Insolent Tracks | INSMX 224 (N) | Spain | 2002 | |
| Missing (12") | Fresca | FRX 036 | Italy | 2002 | |
| Missing (12") | Nebula | NEBTX027 | UK | 2003 | |
| Missing (12") | Nebula | NEBTXX027 | UK | 2003 | |
| Missing (12") | Nebula | NEBT027 | UK | 2003 | |
| Missing (12", Promo) | Nebula | NEBDJ027 | UK | 2003 | |
| Missing (12", Promo) | Nebula | NEBDJX027 | UK | 2003 | |
| Missing (12", Promo) | Nebula | NEBDJXX027 | UK | 2003 | |
| Missing (CDr) | Nebula | none | UK | 2003 | |
| Missing (CDr, Single, Car) | Liquid Recordings | LQ022 | UK | 2007 |
referencing Missing, 12", INSMX 224 (N)