Mayumi appears (sings/talks) in the following miscellaneous CDs.

1996.0?.??	Mahou Tsukai Tai! Original Soundtrack (TYCY-5510)	Song
1996 12.11	Mahou Tsukai Tai! no Bunkasai (TYCY-5534)	Talk/Song
1997 04.21	Tobu Kyoushitsu Sono Tano Tanpen (MMCM-0001)	Talk
1997 08.27	Mahou Tsukai Tai! Koi to Mahou to Atarashii Uta (TYCY-5558)	Song
1997 11.10	Seiyuu Grand Prix Special CD 97	Talk/radio CM
1998 02.21	Pocket Love Angel Voice Memorial vol. 2 (FSCA-10032)	Talk
1998 02.25	Man'youshuu Kuro (PICA-1163)	Song
1998 04.01	Yuukyuu Gensoukyoku 2nd Album drama CD vol 1 (PCCB-309)	Talk
1998 04.29	Yuukyuu Gensoukyoku 2nd Album drama CD vol 2 (PCCB-313)	Talk
1998 12.21	Choukou Senki Kikaiou drama CD (CPCA-1018)	Talk
1998 12.23	Love One's Home -Ren'ai Kouhosei Vocal Collection- (KLCA-2008)	Song
1999 02.03	Yuukyuu Gensoukyoku ensemble drama CD 1 (PCCB-356)	Talk
1999 03.03	Yuukyuu Gensoukyoku ensemble drama CD 2 (PCCB-362)	Talk
1999 08.21	Triangle Session 99 Drama CD Stage 1 (MMCM-0009)	Song/Talk
1999 08.25	Mahou Tsukai Tai! Vocal Collection (TYCY-10023)	Song
1999 08.25	Mahou Tsukai Tai! to Sen'oku no Ai to Kyuukyoku no Uta	Song
1999 08.26	Ani Raji GPX Special CD 99	Talk
1999 11.25	Triangle Session 99 Vocal Mini Album (MMCC-0011)	Song
1999 12.23	Revive... "Portrait-2" (KICA-1228)	Talk
2000 01.21	Mugen no Ryvius Sound Edition 1 Sere 6.350 (VICL-60488)	Talk
2000 01.26	Triangle Session Volume 3 (MMCC-0014)	Talk
2000 02.17	Yuukyuu Ongakusai Vocal hen (PCCB-408)	Song
2000 03.17	Yuukyuu Ongakusai Drama hen (PCCB-409)	Talk
2000 09.20	Yuukyuu Kumikyoku All Start Project drama CD 1 (SCDC-00039)	Talk
2000 09.29	Kanon volume 1 (MACB-6001)	Talk
2000 10.21	Escaflowne Sound Drama Prologue 1 Earth (VICL-60636)	Talk
2001 01.24	Geo Breeders 2 File-XX Original Soundtrack (VICL-60580)	Talk
2001 08.22	Missing Blue drama CD (SCDC-120)	Talk
2001 10.03	Chance Triangle Session Vocal Album (AVCA-14227)	Song
2002 01.23	Seiyuu Best Talk Collection (SCDC-001544-001545)	Talk
2005 01.26	To Heart -Remember My Memories- vol 1 (FCCM-55)	Talk