[YotaLM21]

Oh!

I know this one!! since i've been looking for this info for a long time, here i go:

ayu-mi-x:
It has an OBI, plus, the booklet is actually somekind of folded poster.

ayu-mi-x II:
1st press does NOT have an OBI, all four of them have that special sparkling case though

the standard press DOES HAVE and OBI, but the case has nothing special, just a transparent case

ayu-mi-x III:
1st press have plastic sleeve cases (orange for non-stop and green for acoustic) but NO OBIs

standard press have OBIs of that same colors

ayu-mi-x IV:
1st press have a transparent insert at the back of the CD, orange and pink, but NO OBIs

standard press HAS an OBI, but the insert is not transparent.

ayu-mi-x V:
there is only one press for this one, and ALL of them have OBIs

ayu-mi-x VI:
1st press had a "metallic" sleeve case, but NO OBIs

standard press had a "metallic" OBI, but no sleeve case


hope this helps...