Mariko appears (sings/talks) in the following CD singles.

1994 10.21	Bokura no Suteki/Harmony (KIDA-7601)	Song
1995 01.21	Elles Cinq II: Tiny Heart	Talk
1995 01.21	Elles Cinq III: Love Drug	Talk
1995 01.21	Elles Cinq IV: Nostalgic Lover	Talk
1995 01.21	Elles Cinq V: Tears no Kataomoi	Talk
1995 02.24	Don't Stop!	Song
1995 04.26	Kimi ga Daisuki [Yuri] (VPDG-20608)	Song
1995 07.01	Sunday Island (VPDG-20614)	Song
1995 07.21	Mimi Kaki wo Shiteiruto (KIDA-7603)	Song
1995 12.01	Honki ni Shinaide (VPDG-20633)	Song
1996 05.22	Watashi ga Tenshi Dattara Iinoni/Machibuse (KIDA-7608)	Song
1996 10.23	Yume ha Hitori Mirumono Janai	Song
1997 01.17	Doukyuusei Mahjong Premium CD	Talk
1997 06.04	Egao de Aishiteru	Song
1997 09.03	Kaze ga Tomaranai	Song
1997 11.21	Amenochi Special (KIDA-7638)	Song
1998 02.25	Looking For (KIDS-7603)	Song
1998 07.03	Cobalt (KIDS-7605)	Song
1998 10.23	Taisetsu ni Omoeru Monoga Issho nara Iiyone (KIDS-7608)	Song
1999 01.22	Matte Imashita (KIDS-7610)	Song
2000 04.26	Sabishigariya no Koi (KICS-785)	Song
2000 05.24	Hachimitsu (KICS-794)	Song
2000 07.05	Wish (KIDA-200)	Song
2002 01.10	Hana (KICM-1044)	Song
2004 01.28	Koi no American Football [Drops] (KICM-9003)	Song
2004 02.04	Koi no American Football [Drops] (KICM-91096)	Song
2004 04.28	Furare Kibun de Rock'n Roll [Drops] (KICM-91105)	Song
2004 11.03	Kimi ga Iru Sora (KICM-91122)	Song
2020 10.28	Princess Connect Re:Dive Priconne Character Song 18 (COCC-17678)	Song
2023 03.29	Princess Connect Re:Dive Priconne Character Song 32 (COCC-18072)	Song