| 1 | Couldn't Know (LP Version) | 4:12 |
| 2 | Couldn't Know (Radio Fade) | 4:00 |
| Category | Artist | Title (Format) | Label | Category | Country | Year |
|---|---|---|---|---|---|---|
| 580 345-2 | Paw | Couldn't Know (CD, Maxi) | A&M Records | 580 345-2 | UK | 1993 |
| 580 344-7 | Paw | Couldn't Know (7", Single) | A&M Records | 580 344-7 | UK | 1993 |
| 31458 8187 2 | Paw | Couldn't Know (CD, Single, Promo, Dig) | A&M Records | 31458 8187 2 | US | Unknown |
| AMYDJ 345 | Paw | Couldn't Know (12", Promo) | A&M Records | AMYDJ 345 | UK | 1993 |
| 31458 8160 2 | Paw | Couldn't Know (CD, Single, Promo, Dig) | A&M Records | 31458 8160 2 | US | 1993 |
Issued in a standard J-card case with an insert.