| Cat. No | Artist | Title | Year |
| 56000 | Floh de Cologne | Fließbandbaby's Beat Show | |
| OMM 56.001 | Limbus 4 | Mandalas | 1970 |
| OMM 56.002 | Bernd Witthüser | Lieder von Vampiren, .. | 1970 |
| OMM 556.003 | Embryo | Opal | 1970 |
| 56004 | Tangerine Dream | Electronic Meditation | |
| OMM 556.005 | Guru Guru | UFO | 1971 |
| 2/56006 | Various Artists | Ohrenschmaus | |
| OMM 56.007 | Annexus Quam | Osmose | 1970 |
| OMM-56.008 | Amon Duul | Para Dieswärts Duul | 1971 |
| 56009 | Roger Bunn | Peace of Mind | |
| 56010 | Floh de Cologne | Rockoper Profitgier Live | |
| 56011 | Anima | Sturmischer himmel | |
| OMM 556.012 | Tangerine Dream | Alpha Centauri | 1971 |
| 56013 | Ash Ra Tempel | Ash Ra Tempel | |
| 56014 | Xhol | Hauruk | |
| OMM 556.015 | Birth Control | Operation | 1971 |
| 56016 | Witthüser & Westrupp | Trips und Träume | |
| OMM 556.017 | Guru Guru | Hinten | 1971 |
| 2/556018 | Various Artists | Mittens Ins Ohr (sampler) | |
| OMM 556.019 | Mythos | Mythos | 1972 |
| OMM 556.020 | Ash Ra Tempel | Schwingungen | 1972 |
| OMM 2/56.021 | Tangerine Dream | Zeit | |
| OMM 556.022 | Klaus Schulze | Irrlicht | 1972 |
| OMM 556.023 | Walpurgis | Queen of Saba | 1972 |
| OMM 556.024 | Xhol | Motherfuckers GmbH And Co Kg | 1972 |
| 556025 | Birth Control | Believe in the Pill | |
| 556026 | |||
| 2/56027 | Various Artists | Kosmische Musik (sampler) | |
| OMM 556.028 | Annexus Quam | Beziehungen | 1972 |
| OMM 2/56.029 | Floh de Cologne | Lucky Strike | 1973 |
| OMM 556.030 | Arno Claus | An Tante Gertie In Zons am Rhein | 1973 |
| OMM 556.031 | Tangerine Dream | Atem | 1973 |
| OMM 556.032 | Ash Ra Tempel | Join Inn | 1973 |
| OMM 556.033 | Floh de Cologne | Geier Symphonie | 1974 |