| Label: | Parlophone 12RX 6265 |
| Genre: | Electronic |
| Style: | Downtempo |
| Format: | Vinyl (12") |
| A | The Girl I Used To Know (Stress Mix) | 5:52 |
| AA | The Girl I Used To Know (Red Zone Mix) | 7:30 |
| Label: | Parlophone CDR 6265 |
| Genre: | Electronic |
| Style: | Downtempo, Synth-pop |
| Format: | CD (Maxi-Single) |
| 1 | The Girl I Used To Know » Mixed By: Steve Peck | 4:11 |
| 2 | The Girl I Used To Know (Shep Pettibone Club Mix) » Edited By: Tony Shimkin » Engineer [Remix]: Goh Hotoda » Programmed By [Additional]: Alan Friedman » Remix: Shep Pettibone | 7:40 |
| 3 | The Girl I Used To Know (U.S. Radio Mix) » Engineer: David Sussman » Percussion: David Morales » Programmed By [Keyboards]: Peter Schwartz » Remix: David Morales | 3:50 |
| 4 | Let Me Decide » Producer, Engineer, Mixed By: Adam Moseley | 4:22 |
| Label: | EMI USA V-56160 |
| Genre: | Electronic |
| Style: | Synth-pop, Downtempo |
| Format: | Vinyl (12" , 33 ⅓ RPM) |
| A1 | The Girl I Used To Know (Club Mix) | |
| A2 | The Girl I Used To Know (Shep's Dub) | |
| A3 | The Girl I Used To Know (Single Version) | |
| B1 | The Girl I Used To Know (Pettibone Mix) | |
| B2 | The Girl I Used To Know (Red Zone Mix) | |
| B3 | The Girl I Used To Know (Power Mix) | |
| B4 | Universal (LP Version) |
| Label: | EMI Records Ltd. SPRO 04560, SPRO 04561 |
| Genre: | Electronic, Hip Hop, Pop |
| Style: | Hip-House |
| Format: | Vinyl (12" , Promo) |
| A1 | The Girl I Used To Know (Club Mix) | 7:32 |
| A2 | The Girl I Used To Know (Shep's Dub) | 5:37 |
| B1 | The Girl I Used To Know (Pettibone Dub) | 4:53 |
| B2 | The Girl I Used To Know (Power Mix) | 4:18 |
| B3 | Universal | 3:33 |
| Label: | EMI DPRO 04521 |
| Genre: | Electronic, Pop |
| Style: | Synth-pop |
| Format: | CD (Maxi-Single , Promo) |
| 1 | The Girl I Used To Know (Single Version) | 3:59 |
| 2 | The Girl I Used To Know (Power Mix) | 4:25 |
| 3 | The Girl I Used To Know (Club Mix) | 7:40 |
| Label: | EMI USA SPRO 04549 |
| Genre: | Electronic, Hip Hop, Pop |
| Style: | Hip-House |
| Format: | Vinyl (12" , Promo) |
| A | The Girl I Used To Know (Party Mix) | 7:30 |
| B1 | The Girl I Used To Know (Red Zone Mix) | 7:30 |
| B2 | The Girl I Used To Know (Stress Mix) | 5:52 |
| Label: | Parlophone 12R 6265 |
| Genre: | Electronic |
| Style: | Downtempo, Synth-pop |
| Format: | Vinyl (12" , Maxi-Single) |
| A | The Girl I Used To Know (Shep Pettibone Club Mix) » Edited By: Tony Shimkin » Engineer [Remix]: Goh Hotoda » Programmed By [Additional]: Alan Friedman » Remix: Shep Pettibone | 7:40 |
| B1 | The Girl I Used To Know » Mixed By: Steve Peck | 4:11 |
| B2 | Let Me Decide » Producer, Engineer, Mixed By: Adam Moseley | 4:22 |
| Label: | Parlophone r 6265 |
| Genre: | Electronic |
| Style: | Downtempo, Synth-pop |
| Format: | Vinyl (7" , 45 RPM , Single) |
| A | The Girl I Used To Know » Written-By: Carl Sturken, Evan Rogers | 4:11 |
| B | Let Me Decide » Written-By: C. Fysh, D. White | 4:22 |
| Label: | Capitol Records SPRO-4549 |
| Genre: | Electronic, Hip Hop, Pop |
| Style: | Hip-House |
| Format: | Vinyl (12" , Test Pressing) |
| A | The Girl I Used To Know (Party Mix) | 7:30 |
| B1 | The Girl I Used To Know (Red Zone Mix) | 7:30 |
| B2 | The Girl I Used To Know (Stress Mix) | 5:52 |