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

1992.06.19	20 Byou CM Gouka 10 Pondate (PCDG-042-4)	Talk
1992.06.19	Koi no Housoku (PCDG-042-3)	Song
1992.09.18	Hottokenainosa Claim Taishougaihen (PCDG-049-4)	Talk
1992.09.18	Tsukamaranaiyo (PCDG-049-3)	Song
1992.11.20	Shiawase ga Kasoku suru	Song
1993.01.22	My Heart Iidasenai Your Heart Tashikametai (PCDG-00055)	Song
1993.10.??	Kataomoi Shika Shiranai Kuseni	Song/Talk
1993.12.01	Moon Revenge (FMDC-505)	Song
1994.03.01	Sailor Mercury (CODC-379)	Song/Talk
1994.07.01	Koisuru Otomeha Makenai (FMDC-510)	Song
1994.07.01	PC Engine Sailor Moon	Song
1994.07.01	Sunday	Song
1994.07.31	Talking About The Graduation [Sotsugyou Graduation] (MWDG-0003)	Talk
1994.11.23	Taiyou ga Atatameta Kimochi	Song
1994.12.01	Aoi Sora wo Dakishimetai	Song
1995.02.24	Don't Stop!	Song
1995.09.01	Hateshinai Toiki [Gun Smith Cats] (VPDG-20627)	Song
1996.01.20	Motto Motto Radical Fight!	Song
1996.01.24	Aozora Sentai Shimo Ranger	Talk
1996.03.30	Gimme Love	Song
1996.05.21	Yarukkya Naiwa	Song
1996.07.01	Tsuki to Taiyou no Meguri	Song
1996.07.20	Girl Friends	Song
1996.09.21	Popcorn Town	Song
1996.11.01	Sailor Moon Christmas (CODC-1059)	Song
1996.11.21	Starlight	Song
1996.12.21	Ashita mo Mata Jitensha (CODC-1083)	Song/Talk
1997.08.07	Jitensha (PCDG-093)	Song
1997.08.07	Kimi wo Kaerarenai Boku ga Tsutawaranai (PCDG-094)	Song
1998.06.03	Character Single Kero-chan (VIDL-30226)	Song/Talk
1998.08.21	Koreha Korede Arikana Nante.. (VPCG-82109)	Song
1999.11.20	Fruits Candy (VIDL-30454)	Song
2000.07.20	Okashi no Uta [Kero-chan ni Omakase] (VICL-35153)	Song
2010.10.27	Power of Shine (MJCD-23092)	Song