| Talk | Silent Mobius Original Drama Album "Danger" (H00K 20141), 1989.06.25 | Okamoto Maya (²¬ΛάΛγΜο) |
| Song/Talk | Silent Mobius 2 Original Soundtrack (VICL-304), 1992.07.18 | Okamoto Maya (²¬ΛάΛγΜο) |
| Song | 92 Seiyuu Graffiti, 1992.10.28 | Okamoto Maya (²¬ΛάΛγΜο) |
| Song/Talk | Hummingbird Gaiden (TYCY-5398), 1994.09.28 | Okamoto Maya (²¬ΛάΛγΜο) |
| Talk | Seiyuu Grand Prix CD vol 1 (AYCM-502), 1996.02.05 | Okamoto Maya (²¬ΛάΛγΜο) |
| Song/Talk | Yuugeki Uchuu Senkan Nadesico (KICA-337), 1997.02.05 | Okamoto Maya (²¬ΛάΛγΜο) |
| Talk | Burn Up Excess Plus file 4 (KICA-7829), 1998.04.03 | Okamoto Maya (²¬ΛάΛγΜο) |
| Song | Sakura Taisen 2 Kayouzenshuu (MJCA-00021), 1998.04.29 | Okamoto Maya (²¬ΛάΛγΜο) |
| Talk | Noisy Paradise (SRCL-4349), 1998.09.09 | Okamoto Maya (²¬ΛάΛγΜο) |
| Talk | Silent Mobius Original Audio Drama Mobius Collage (AYCM-615), 1998.09.21 | Okamoto Maya (²¬ΛάΛγΜο) |
| Talk | Yuugeki Uchuusenkan Nadesico (KICA-429 KICA-430), 1998.10.23 | Okamoto Maya (²¬ΛάΛγΜο) |
| Talk | EVE Burst Error -Eldia Hirokuhen- (KICA-1218), 1998.10.?? | Okamoto Maya (²¬ΛάΛγΜο) |
| Talk | Sakura Taisen 2 Drama CD Aoi Tori (TECD-30429), 1999.02.10 | Okamoto Maya (²¬ΛάΛγΜο) |
| Song | Sakura Taisen 3 Vocal Collection (AVCA-14155), 2001.05.30 | Okamoto Maya (²¬ΛάΛγΜο) |
| Song | Shin Kayou Zenshu III: Sakura Taisen 5th Song Show (AVCA-14180), 2001.07.01 | Okamoto Maya (²¬ΛάΛγΜο) |
| single Song | Koi no Megami Tsukamaetara (AYDM-105), 1996.02.21 | Okamoto Maya (²¬ΛάΛγΜο) |
| single Song | Kiseki no Kane (AVCA-14248), 2001.11.21 | Okamoto Maya (²¬ΛάΛγΜο) |
| single Song | Waratte Waratte (WWCE-31156), 2008.03.26 | Okamoto Maya (²¬ΛάΛγΜο) |
| single Song | Ai ga Kaoru koroni (WWCE-31245), 2011.02.23 | Okamoto Maya (²¬ΛάΛγΜο) |