| Artist name | Roles | Recordings |
|---|---|---|
| Roger Watson (UK techno DJ/producer aka DJ Hal) | producer | Vaporizer |
| Ron Rothfield | producer | Vaporizer |
| Artist name | Roles | Recordings |
|---|---|---|
| Roger Watson (UK techno DJ/producer aka DJ Hal) | producer | Vaporizer |
| Ron Rothfield | producer | Vaporizer |
| Artist name | Roles | Recordings |
|---|---|---|
| Roger Watson (UK techno DJ/producer aka DJ Hal) | producer | Vaporizer |
| Ron Rothfield | producer | Vaporizer |