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

1997.10.end	Sentimental Graffiti character collection drama CD Nagakura Emiru	Talk
1997.10.end	Sentimental Graffiti character collection drama CD Special	Talk
1998 01.14	Sentimental Graffiti CD Collection vol 2 Nagakura Emiru (BPPZ1009)	Song/Talk
1998 08.07	Boys & Girls [Asterisk]	Song
1998 12.31	Wonderland (APDM-9010R)	Song/Talk
1999 03.26	Hikari no Riara (KICA-5027)	Song
1999 04.23	I Wish (NEDA-10002)	Song
1999 06.25	Ashita he no Jumon (NEDA-10003)	Song
1999 08.06	Break Out (NEDA-10007)	Song
1999 10.08	Keep On (NEDA-10009)	Song
1999 10.08	Like A Candle (NEDA-10010)	Song
2000 04.26	Ashita ha Atashi no Kazega Fuku [AiM] (NEDA-10022)	Song
2000 04.26	Sakuhin No. 2 "Haru" I Chouchou [AiM] (NEDA-10020)	Song
2000 10.25	Itsumo Itsudemo [AiM] (NEDA-10025 NEDA-12001)	Song
2001 02.21	Friend -Itsumade mo Wasurenai- (NECM-12003)	Song
2001 05.02	My Tomorrow (NECM-12006)	Song
2001 05.23	Go! Go! Ready? Go?! (NECM-12008)	Song
2001 10.10	Days -Aijou to Nichiou- (NECM-12015)	Song
2001 11.29	Kimi to no Mirai (NECM-12020)	Song
2002 03.06	Yuuhi no Yakusoku (NECM-12027)	Song
2003 07.03	Moving On! (NECM-12011)	Song
2003 12.03	Resolution (NECM-12064)	Song
2007 06.27	Tobikkiri! Yuuki no Door [Kasugano Urara] (MJCD-23034)	Song
2010 08.18	Sparky Start [Katate Size] (PCCG-70067)	Song
2010 11.17	Symphonic Dream [Katate Size] (PCCG-70068)	Song
2011 07.27	Orange Smile [Katate Size] (PCCG-70117)	Song
2011 10.26	Departure [Katate Size] (PCCG-70118)	Song
2015 11.25	I Wish -tri version- (NECM-10233)	Song