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

1992.09.30	Asu he no Free Kick II (TYCY-5248)	Talk
1994.04.27	Secret Sessions 2 Illegal Broadcast (PICA-1033)	Talk
1994.11.25	Fire Woman (TKCA-70534)	Talk
1995.02.22	Secret Sessions 3 Feelin' Groovy (PICA-1057)	Talk
1995.06.21	Scandalous Actor Performance (AFCP-2002)	Talk
1995.06.28	Secret Sessions 4 Practical Joke (PICA-1064)	Talk
1995.07.21	Jinkousehouseiki Izanagi (AFCP-2006)	Talk
1996.08.07	Gekkan Tokimeki Memorial 1 (KICA-7711)	Talk
1996.09.05	Gekkan Tokimeki Memorial 2 (KICA-7712)	Talk
1996.10.02	Gekkan Tokimeki Memorial 3 (KICA-7713)	Talk
1996.10.23	Gundam X Side 2 (KICA-322)	Song
1996.11.01	Gekkan Tokimeki Memorial 4 (KICA-7714)	Talk
1996.12.05	Gekkan Tokimeki Memorial 5 (KICA-7715)	Talk
1996.12.21	Tokimeki Memorial Vocal Best Collection 3 (KICA-7733)	Song
1997.01.01	Gekkan Tokimeki Memorial 6 (KICA-7716)	Talk
1997.01.22	Gundam X Side 3 (KICA-335)	Song
1997.03.21	Street Fighter EX drama CD (PCCB-256)	Talk
1999.01.20	Voice Theater Series 2 Urban Blue (TYCY-10007)	Talk
1999.09.08	Jane Oferinaito (MACA-2011)	Talk
2002.06.19	Sakura Taisen Uta no Album Teito-hen Paris-hen (AVCA-14394)	Song
2006.01.31	Cinematic Sound Drama GetBackers -Bug's Karma- (MKC-0009)	Talk