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

1996 04.17	Senobi wo Shite Follow You (TYDY-2065)	Song
1996 06.12	Nakatomi Nanaka (TYDY-2072)	Song
1997 12.17	Accel	Song
1998 05.20	Sha La La! -Genki ni Naare- [Trisha Foster] (PCDB-010)	Song/Talk
1998.??.??	Talk CD Iizuka Mayumi no Anoko Dokonoko [Anoko Dokonoko Premium CD]	Talk
1999 07.16	Over The Rainbow (TYDY-2124)	Song
2000 01.26	Caress/Place to Be (PICA-0006)	Song
2000 05.24	My Wish ()	Song
2001 03.31	Missing Blue 02 -Shizuno- ()	Song/Talk
2001 06.20	Pure Blue / Love Forever (AVCA-14151)	Song
2001 07.25	Tenshi in your Heart / Futari Dake no Moon (AVCA-14162)	Song
2002 04.24	Yasashii Migite (TKCA-72340)	Song
2002 06.26	Koi no Iro (TKCA-72362)	Song
2002 07.24	Memorial Song (DPCX-5231)	Song
2003 06.25	Pure (TKCA-72554)	Song
2003 12.17	Warukyuure Character Maxi 6 (COCC-15608)	Song