[Machine Translation] Spitz will celebrate the 15th anniversary of their debut in 2006, and this is the first complete singles collection to be released on the anniversary of their debut, and it will be released on two discs at the same time! The songs are in the order of their release, from "It's Not a Dream" released in April 1997 to the latest single "Haru no Uta" released in April 2005. All of the songs are big hits! Very rare sound sources ("Yume Oirimushi early version": self-produced by the members. Megumi Mashiro of Hicksville joined in the chorus. Includes BONUS 8cm CD ("Yume Oirimushi early version" : self-produced by the members, Megumi Mashiro of Hicksville joins on the chorus ), artist photo collection ( featuring artist photos from past releases ), and an entry ticket for the purchase lottery ( Prize A: original bicycle, Prize B: CYCLE HIT T-shirt / *Entry deadline: '06/4/10 postmarked on the day of purchase ). Sleeve case.