| Title, Format | Label | Cat# | Country | Year | |
|---|---|---|---|---|---|
| Why? (12", Maxi) | Metronome | 882 014-1 | Germany | 1984 | |
| Why? (Remix) (12") | Forbidden Fruit | BITEX 2 | UK | 1984 | |
| Why? / Close To The Edge (12", Ltd) | London Records | LDSX 219 | Canada | 1984 | |
| Why? / Close To The Edge (7") | London Records | LDS 219 | Canada | 1984 | |
| Why? / Por Qué? (7", Single) | London Records | 9-09 025 | Spain | 1984 | |
| Why? (12") | Forbidden Fruit | BITEX 2 | UK | 1984 | |
| Why? (12") | MCA Records | MCA-23538 | US | 1984 | |
| Why? (12") | London Records | 882 014-1 | Netherlands | 1984 | |
| Why? (12", 45 ) | London Records | 882 014-1 | Italy | 1984 | |
| Why? (12", Maxi) | London Records | 882 014-1 | France | 1984 | |
| Why? (12", Promo) | MCA Records | MCA-23538 | US | 1984 | |
| Why? (7") | Forbidden Fruit, London Records | BITE 2, 882 014-7 | UK | 1984 | |
| Why? (7") | Barclay | 882 014-7 | France | 1984 | |
| Why? (7") | Barclay | 882 014-7 | France | 1984 | |
| Why? (7") | London Records | 882 014-7 | Italy | 1984 | |
| Why? (7", Single) | London Records | 882 014-7 | Netherlands | 1984 | |
| Why? (7", Single) | Metronome | 882 014-7 | Germany | 1984 |
referencing Why?, 12", Maxi, 882 014-1