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