Katsuki Masako CDs (miscellaneous)
Masako appears (sings/talks) in the following miscellaneous CDs.
| 1994.05.20 | Seiyuu Daisuki 1 (MRCA-20037) | Talk |
| 1995.09.21 | Kaze no Densetsu Zanadu II (KICA-1167) | Talk {Media} |
| 1995.12.16 | Seiyuu Daisuki 3 (MRCA-20080) | Talk |
| 1997.01.21 | Little Step Image Album (COCC-14018) | Song |
| 1997.05.03 | Yamamoto Yoko II Wave 1 (KICA-348) | Talk |
| 1997.05.21 | Voice Actor Original Drama Collection I (APCM-5102) | Talk |
| 1997.05.21 | Voice Actor Original Drama Collection II (APCM-5103) | Talk |
| 1997.05.21 | Voice Actress Best Song Collection 89-90 (APCM-5100) | Song |
| 1997.07.24 | Yamamoto Yoko II Wave 2 (KICA-356) | Talk |
| 1997.09.01 | Next King -Koi no Sennen Oukoku- Gaiden (SRCL-4031) | Talk |
| 1997.11.06 | Yamamoto Yoko II Wave 3 (KICA-379) | Talk |
| 2004.07.23 | Beast of East (MMCC-4057) | Talk |