| System (alternative mix) | Mel & Kim | | | 3:59 | |
| System (Dub) | Mel & Kim | | | 4:25 | |
| System (Garage vocal) | Mel & Kim | | | 7:22 | |
| System (House Mix) | Mel & Kim | | | 3:48 | |
| System (Instrumental) | Mel & Kim | | | 4:24 | |
| System (original 12" mix) | Mel & Kim | | | 5:45 | |
| System (U.S. Album Edit) | Mel & Kim | | | 4:51 | |
| System (vocal/Garage mix) | Mel & Kim | | | 9:00 | |
| That’s the Way It Is | Mel & Kim | | | 3:27 | |
| That’s The Way It Is | Mel & Kim | | | 7:00 | |
| That’s the Way It Is (7″ version) | Mel & Kim | | 2 | 3:24 | |
| That’s the Way It Is (Acid dub) | Mel & Kim | | | 4:31 | |
| That’s the Way It Is (Acid House remix) | Mel & Kim | | | 7:38 | |
| That’s the Way It Is (Acid Pop instrumental) | Mel & Kim | | | 3:33 | |
| That’s the Way It Is (Acid Pop mix) | Mel & Kim | | | 3:33 | |
| That’s the Way It Is (club mix) | Mel & Kim | | | 6:40 | |
| That’s the Way It Is (extended version) | Mel & Kim | | | 6:49 | |
| That’s the Way It Is (House remix) | Mel & Kim | | | 6:42 | |
| That’s the Way It Is (instrumental) | Mel & Kim | | | 3:26 | |
| That’s the Way It Is (original 12" mix) | Mel & Kim | | | 6:22 | |
| That’s the Way It Is (original dub) | Mel & Kim | | | 4:26 | |
| That’s the Way It Is (radio jingles) | Mel & Kim | | | 4:59 | |
| That’s the Way It Is (Razormaid mix) | Mel & Kim | | | 6:33 | |
| That’s the Way It Is (Razormaid mix) | Mel & Kim | | | 6:33 | |
| That’s the Way It Is (remix) | Mel & Kim | | | 6:42 | |
| That’s the Way It Is (Special mix) | Mel & Kim | | | 6:49 | |
| The Mel & Kim 1990 Mega-Mix | Mel & Kim | | | 3:58 | |
| The Mel & Kim 1990 Mega-Mix (12" Remix) | Mel & Kim | | | 7:07 | |
| The Mel & Kim 1990 Mega-Mix (Alternative Version) | Mel & Kim | | | 6:35 | |
| The Mel & Kim 1990 Mega-Mix (Extended Version) | Mel & Kim | | | 7:11 | |
| Totally 80’s (Part 3): The Real Thing / Be My Twin / Dancing Tight / Intuition / (F. L.M.) | Jellybean / Brother Beyond / Galaxy / Linx / Mel & Kim | | | 11:47 | |
| Whatever It Is | Mel & Kim | | | 6:28 | |
| Where Is Love | Mel & Kim | | | 3:27 | |
| Where Is Love (7th Heaven Club Mix) | Mel & Kim | | | 7:28 | |
| Where Is Love (Extended Version) | Mel & Kim | | | 4:59 | |
| Where Is Love (Final DJs Remix) | Mel & Kim | | | 3:29 | |
| Where Is Love (Kissy Sell Out Remix) | Mel & Kim | | | 5:02 | |
| Where Is Love (Leeds House Radio Mix) | Mel & Kim | | | 2:57 | |
| Where Is Love (PJS & Phil Harding Radio Mix) | Mel & Kim | | | 3:51 | |
| Where Is Love (Radio Version) | Mel & Kim | | | 4:01 | |
| Where Is Love (US Radio Version) | Mel & Kim | | | 3:50 | |
| Where Is Love (Zack Massagrande Remix) | Mel & Kim | | | 3:10 | |
| Who’s Gonna Catch You | Mel & Kim | | | 3:35 | |
| You Changed My Life | Mel & Kim | | | 3:27 | |
| You Changed My Life | Mel & Kim | | | 3:16 | |
| You Changed My Life (Alternative Mix) | Mel & Kim | | | 3:25 | |
| You Changed My Life (instrumental) | Mel & Kim | | | 3:26 | |
