Mamiko appears (sings/talks) in the following miscellaneous CDs.

2003.09.26	Galaxy Angel Character File 05 (BRCF-3016)	Talk
2004.02.27	Godannar Drama CD 2 (AFC-1011)	Talk
2004.04.28	Mahou Sensei Negima Mahora Gakuen Chuutoubu 2-A 1 Gakki (KICA-639)	Talk
2004.09.24	Ai Yori Aoshi Ryojouhen (MMCC-7035)	Talk
2004.10.22	Ai to Kaoru no Love Pheromone! DJCD 2 (FCCV-5)	Talk
2005.02.16	Kagayaku Kimihe [Kanakana Gumi] (KICM-3094)	Song
2005.07.22	Aa Megami-sama Variety Album 2 (GNCA-1027)	Talk
2005.08.24	Aa Megami-sama Variety Album 3 (GNCA-1028)	Talk
2005.12.22	Chitose Gecchu! (FCCC-44)	Talk
2005.12.28	School Rumble Kikaku Album Drama+Super Oshibai Songs (KICA-744)	Talk
2006.02.22	Mahou Sensei Negima! DJCD Vol.2 (KICA-753)	Talk
2006.03.24	Hayate X Blade drama CD vol 1 (FCCC-0043)	Talk
2007.05.25	Drama CD CLANNAD vol 2 Ichinose Kotomi (FCCP-0025)	Talk
2007.08.08	Idol Master Xenoglossia Drama CD Vol. 2 (LACA-5673)	Talk
2007.09.26	Negima!? Best Album (KICA-842)	Song
2007.11.07	Idol Master Xenoglossia Drama CD Vol. 3 (LACA-5706)	Talk
2008.02.22	Splendide Shana Vol 1 (GNCA-1154)	Song/Talk
2008.03.12	Mai Hime Destiny Drama CD 2 (LACA-5743)	Talk
2008.04.23	Kimi Kiss Character Song Album (LACA-5721)	Song
2008.04.23	Persona3 Character Drama CD vol 3 (FCCT-0068)	Talk
2008.05.21	Hayate X Blade Drama 3 (FCCC-69)	Talk
2008.05.21	Persona3 Character Drama CD vol 4 (FCCT-0069)	Talk
2008.08.20	Zero no Tsukaima -Princess no Rondo- Original Soundtrack (COCX-35137)	Song
2008.09.26	Nogizaka Haruka no Himitsu Original Soundtrack (GNCA-1195)	Song
2008.11.26	Nogizaka Haruka no Himitsu Drama CD1 (GNCA-1196)	Talk/Song
2008.12.10	Maria-sama ga Miteru Christmas Album (FCCM-0261)	Song
2008.12.26	Nogizaka Haruka no Himitsu Drama CD2 (GNCA-1197)	Talk/Song
2009.02.27	N's (GNCA-1217)	Song
2009.03.25	Kanokon Nicebody Perfect Vocal Collection (FVCG-1087)	Song
2009.11.26	Nogizaka Haruka no Himitsu Purezza A LA CARTE 1 (GNCA-1232)	Song/Talk
2009.12.23	Nogizaka Haruka no Himitsu Purezza A LA CARTE 2 (GNCA-1234)	Talk
2010.01.27	Happy? (GNCA-1237)	Song
2010.02.26	Nogizaka Haruka no Himitsu Purezza A LA CARTE 3 (GNCA-1235)	Song/Talk
2010.03.25	Queen's Blade Vocal Collection (ZMCZ-4660)	Song
2010.05.26	B Gata H Kei Character Song Album (KICA-2507)	Song
2010.11.17	Mahou Sensei Negima! Mou Hitotsu no Sekai Theme Song Collection (KICA-3133)	Song
2011.03.02	Hime Koi Drama CD (GNCA-1276)	Talk
2011.07.06	Dororon Enma-kun Meeramera Shouwa Hit Studio (KICA-3149)	Song
2011.11.16	Kaitou Tenshi Twin Angel 3 Sound Collection (PCCR-90050)	Song