[Polyrhythm]

Full Collection:

Utada Hikaru:

Spoiler:

First Love (Japan Press)
Deep River (Japan First Press with picture label disc)
Exodus (US Version)
Be My Last (CD+DVD Taiwan Press)
Ultra Blue (Japan Press)
Heart Station/Stay Gold (Taiwan First Press with stickers)
Heart Station (Taiwan Press)
Prisoner of Love (CD+DVD Taiwan Press)
This Is The One (US Version)

Perfume:

Spoiler:

Perfume ~Complete Best~ (CD+DVD Japan Regular Version)
Dream Fighter (CD+DVD Japan Limited Edition)
ワンルーム・ディスコ (CD+DVD Japan Limited Edition)
⊿ (CD+DVD Japan Limited Edition)

alan:

Spoiler:

声声醉如兰 (China Version)
心・战 ~RED CLIFF~ (China Version)
心的東方 (CD+DVD Hong Kong First Press with photobook, postcard, and bonus track)
明日への讃歌 (CD+DVD Taiwan Press)
Voice of EARTH (CD+DVD Taiwan First Press with photobook and bonus tracks)
久遠の河 (CD+DVD Taiwan Press)

Ayumi Hamasaki:

Spoiler:

A Song for XX (Japan Press)
evolution (Taiwan Press)
A-Ballads (Japan First Press with slipcase)
Memorial Address (CD+DVD Hong Kong Press)
Carols (Japan Press)
MY STORY (CD+DVD Japan First Press)
Secret (CD+DVD Hong Kong Press)
A-Best 2: White (CD+2DVD Japan Press)
Guilty (CD+DVD Taiwan Press)
Mirrorcle World (CD+DVD Taiwan Press)
A-Complete: All Singles (3CD+DVD Taiwan Press)
A-Complete: All Singles (3CD+DVD China First Press with box and photobook)
Days/GREEN (CD+DVD Taiwan First Press with cardboard box)
NEXT LEVEL (CD+DVD Japan First Press with blue case)
Arena Tour 2005: MY STORY (3DVD China Press)
Arena Tour 2006: (miss)understood (4VCD Hong Kong Press)
Asia Tour 2008: Live in Taipei (3DVD Taiwan Press)
Vivi: January 2006
Guilty Photobook
A-Complete Photobook

Others:

Spoiler:

Koda Kumi-Black Cherry (CD+DVD Taiwan First Press)
Koda Kumi-MOON (CD+DVD Taiwan First Press)
Angela Aki-ANSWER (CD Only Taiwan Press)
BoA-Next World (Taiwan Press)
BoA-BoA (US Version)
Kingdom Hearts Soundtrack (Unknown Version. US???)

I only started collecting CDs around this time last year so its still small compared to everyone else's collections =P