My collection:
alan:
Voice of EARTH (TW Press; CD+DVD; no photobook or bonus tracks)
Ayumi Hamasaki:
MY STORY (JP press; CD+DVD; limited cover A; error pamphlet)
(miss)understood (SG press; CD+DVD; no photobook)
Secret (SG press; CD+DVD)
GUILTY (SG press; CD+DVD; no photobook)
A COMPLETE ~ALL SINGLES~ (TW press; 3CD+DVD; no photobook; no box package)
Rock'n'Roll Circus (TW press; CD+DVD; bonus video; photobook)
BoA:
IDENTITY (KR press; CD only; sticker of CD+DVD cover
)
Koda Kumi:
secret (JP press; CD+DVD; no backing)
BEST ~second session~ (CH press; CD only; no bonus track or photobook)
BEST ~third universe~ & 8th AL ''UNIVERSE'' (TW press; 2CD+DVD; bonus track)
Lee Jung Hyun:
Avaholic (KR press; CD only; special package)
Italics: waiting on