| Official |
|---|
| 1.5 | Years of the 9, on the Blackhand Side | 4:26 | Professor X | Years of the 9, on the Blackhand Side | Professor X | Album | | 4th & B’way | 162 444 033-2 |
| 1.5 | Years of the 9, on the Blackhand Side | 4:26 | Professor X | Years of the 9, on the Blackhand Side | Professor X | Album | | 4th & B’way | 162 444 033-4 |
| 1.5 | Years of the 9, on the Blackhand Side | 4:26 | Professor X | Years of the 9, on the Blackhand Side | Professor X | Album | | 4th & B’way | 162 444 033-1 |
| 1.1 | Years of the 9, on the Blackhand Side | 4:26 | Professor X | Years of the 9, on the Blackhand Side | Professor X | Single | | 4th & B’way | 440 522-1 |
| 1.1 | Years of the 9, on the Blackhand Side | 4:26 | Professor X | Years of the 9, on the Blackhand Side | Professor X | Single | | 4th & B’way | 440 522-4 |
