- Use mail order stores.
Some stores to try are
CD Japan (http://www.cdjapan.co.jp),
All of these stores can try to find items if they don't
have it. Note that CD Japan and JIGS are both located in Japan.
Some other stores around are
The Right Stuf,
- Visit a Japanese bookstore like Kinokuniya,
These are some of the Japanese bookstores in major
metropolitan areas like NYC and LA. No I don't know how to
get to them but I imagine they'd be listed in the phone book.
The prices aren't as good as mail order, and the selection of
anime CDs tends to be small though they'll usually have a good
selection of J-Pop CDs. They'll tend to have some of
the more recent releases.
- Go to Japan.
Kinda expensive for shipping and handling but at least you'll
get the current exchange rate.
- Visit Chinatown.
SM CDs can be found in Chinatown.
- Go to an anime convention.
Conventions will usually have a decent selection of
CDs though the more popular titles tend to sell out early.
Prices vary. If you
want to take a chance, there are usually large discounts on
the last day of a convention. You can also try your hand at
haggling over prices.