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

1997 11.10	Seiyuu Grand Prix Special CD 97	Talk
1998 02.21	Level-C West End & G2 (MMCM-3003)	Talk
1999 08.26	Ani Raji GPX Special CD 99	Talk
2004 03.21	Growlanser IV volume 1 (FCCT-0012)	Talk
2004 04.23	Growlanser IV volume 2 (FCCT-0013)	Talk
2004 11.10	Stella Deus Another Legend (SVWC-7220)	Talk