| Kacho Oji |
| Kacho Oji OST "Kachoh Kourin" |
| Kacho Oji OST Bonus CD |
| Kaitou Saint Tail |
| Kaitou Saint Tail Allstar Song Collection |
| Kaitou Saint Tail Best of Best |
| Kanon |
| Kanon TV OST I |
| Kanon TV OST II CD1 |
| Kanon TV OST II CD2 |
| Piano de Kanon |
| Kareshi Kanojo no Jijou |
| Kareshi Kanojo no Jijou ACT1 |
| Kareshi Kanojo no Jijou ACT2 |
| Kareshi Kanojo no Jijou ACT3 |
| Kareshi Kanojo no Jijou Setsu-Getsu-Ka |
| Kaze no Tairiku |
| Kaze no Tairiku OST I |
| Kaze No Tairiku OST II |
| Kaze no Tani no Nausicaa |
| Nausicaa : Symphony |
| Nausicaa Best Collection |
| Nausicaa OST |
| Kenshin (Rurouni Kenshin) |
| Rurouni Kenshin : Best Theme Collection |
| Rurouni Kenshin OST I |
| Rurouni Kenshin OST II : Departure |
| Rurouni Kenshin OST IV : Let it Burn |
| Rurouni Kenshin Seisou Hen OST |
| Rurouni Kenshin Songs II |
| Rurouni Kenshin Tsuioku Hen OST |
| Key the Metal Idol |
| Key the Metal Idol Vocal Data CD1 |
| Kiddy Grade |
| Kiddy Grade Sound Pack I : Eclair |
| Kiddy Grade Sound Pack II : Lumiere |
| Kiddy Grade Sound Pack III |
| Kimagure Orange Road |
| Kenran Butousai Original Sound Log 1 |
| Kimagure Orange Road : Loving Heart |
| Kimagure Orange Road : Singing Heart |
| Kimagure Orange Road Mokitate Special |
| Kimagure Orange Road Singing Heart² : Sweet Memories CD1 : See Me |
| Kimagure Orange Road Singing Heart² : Sweet Memories CD2 : Hold Me |
| Kimagure Orange Road Singing Heart² : Sweet Memories CD3 : Show Me |
| Kimagure Orange Road Singing Heart² : Sweet Memories CD4 : Feel Me |
| Kimagure Orange Road Singing Heart² : Sweet Memories CD5 : Touch Me |
| Kimagure Orange Road Singing Heart² : Sweet Memories CD6 : Hear Me |
| Kimagure Orange Road Singing Heart² : Sweet Memories CD7 : Love Me |
| Kimagure Orange Road Sound Color 1 |
| Kimagure Orange Road Sound Color 2 |
| Kimagure Orange Road Sound Color 3 |
| Shin Kimagure Orange Road : Madoka's Piano Files |
| Shin Kimagure Orange Road OST |
| Kimi ga Nozomu Eien |
| Kimi ga Nozomu Eien : Precious Memories Single |
| Kimi ga Nozomu Eien OST I |
| Kimi ga Nozomu Eien OST II |
| Kimi ga Nozomu Eien Portrait CD 01 : Mizuki |
| Kino no Tabi |
| Kino no Tabi : All The Way |
| Kino no Tabi : The Beautiful World |
| Kodomo no Omocha |
| Kodomo no Omocha : Best Collection |
| Kodomo no Omocha OST I |
| Kodomo no Omocha OST II |
| Kodomo No Omocha OST III |
| Komugi-chan (Nurse Witch Komugi-chan) |
| Nurse Witch Komugi-chan Magical te "Komugi 100% Shiyou!" |
| Nurse Witch Komugi-chan Majical te OST I |
| Kousetsu Hyaku Monogatari |
| Kousetsu Hyaku Monogatari : The Flame |
| Kurenai no Buta |
| Kurenai no Buta Image Album |
| Kurenai No Buta OST |
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