Second hand music CD�fs in Japan?

I�fm desperate to get hold of some CD�fs by a Japanese girl rock group called NEWS. I think that they have now finished and that most of their CD�fs were released in the 1990�fs. I�fve looked online and have only managed to find one – expensive shipping too! But in March next year I will be in Tokyo, Osaka and (briefly) Nagoya. Can anyone recommend any shops that are likely to sell CD�fs by this band?

Disc Union http://diskunion.net/ (Japanese)

Book Off http://www.bookoff.co.jp/
(Japanese)

These stores are everywhere. Disc Union is purely music and is more likely to sell what you are after. Book Off is good too, depending on the store. There are some large ones around which obviously have a bigger variety of 2nd hand cds.
Even if the band is a bit old, the normal shops like HMV and Tower Records usually carry a pretty big selection so you can always try them.