Oikawa Hitomi CDs (miscellaneous)
Hitomi appears (sings/talks) in the following miscellaneous CDs.
| 1997.02.14 | Doukyuusei -Ren'ai Senka- Lesson 2 (JSCA-59047) | Talk |
| 1999.01.20 | Voice Theater Series 3 Niji wo Wataru Neko (TYCY-10008) | Talk |
| 2000.10.12 | Pia Carrot he Youkoso! 2 DX Best Vocal Collection (SCDC-00040) | Song |
| 2001.03.07 | Pia Carrot he Youkoso! 2 DX Drama CD () | Talk |