Iwata Mitsuo CDs (miscellaneous)
Mitsuo appears (sings/talks) in the following miscellaneous CDs.
| 1990.08.21 | Tengai Makyou (VICL-54) | Song |
| 1990.11.21 | Everybody's Christmas | Song |
| 1990.11.25 | Seiyuu Graffiti | Song |
| 1992.10.28 | 92 Seiyuu Graffiti | Song |
| 1993.06.20 | Aa Megami-sama Tokuten-ou | Talk |
| 1996.02.16 | Golden Boy Study a Go! Go! (JSCA-29032) | Song |
| 1996.05.22 | Boku no Marie Wars CD Cinema 1 (VICL-8190) | Talk |
| 1997.07.24 | Happy Boy radio anime vol 1 (WDCD-28009) | Talk |
| 1997.10.21 | Janjan Koishimasho (MMCM-5001) | Talk |
| 1997.10.22 | True Love Story drama CD vol. 4 (WDCD-28015) | Talk |
| 1997.11.10 | Seiyuu Grand Prix Special CD 97 | Talk |
| 1998.02.01 | Angelique Kiss Kiss Kiss (KECH-1124-1125) | Song |
| 1998.02.05 | Guy Brave radio drama CD vol 1 (AZCV-2001) | Talk |
| 1998.03.05 | Guy Brave radio drama CD vol 2 (AZCV-2002) | Talk |
| 1998.04.05 | Guy Brave radio drama CD vol 3 (AZCV-2003) | Talk |
| 1998.09.23 | Oh Chin Chin () | Song |
| 1999.03.26 | Zutuki Shoten Mondaisaku () | Talk |
| 1999.07.07 | Sensei no Ojikan 1 Jikanme (AVCT-15004) | Talk |
| 1999.08.04 | Sensei no Ojikan 2 Jikanme (AVCT-15009) | Talk |
| 1999.08.26 | Ani Raji GPX Special CD 99 | Talk |
| 2000.08.23 | The King of Fighters 2000 (SCDC-035) | Talk |
| 2000.12.20 | Ah! Megami-sama! Tokuten-oh+ (PCCG-559) | Talk |
| 2001.03.07 | Sensei no Ojikan 10 Jikanme () | Talk |
| 2001.06.27 | Otasasa TV disk 1 (MMCC-0021) | Talk/Song |
| 2001.07.20 | Otasasa TV disk 2 (MMCC-0022) | Talk/Song |
| 2002.01.23 | Seiyuu Best Talk Collection (SCDC-00153) | Talk |
| 2003.09.18 | Omoide ni Kawaru Kimi -Memories Off- Drama Best (SCDC-309) | Talk |
| 2008.04.24 | Splendide Shana Vol 2 (GNCA-1155) | Talk |
| 2008.05.23 | Splendide Shana Vol 3 (GNCA-1156) | Talk |
| 2011.02.09 | Kore ha Zombie Desuka? Drama CD (VTCL-60237) | Talk |