The majority is copy right, I mean I can browse jpop on iTunes and listen to it but I think you would have to setup your store different and get a japanese iTunes gift card to make it work. Other wise, you might be able to send something to apple in their forums about international sales.
As for me, I am am lucky enough to find OST's at the store I go to, as well as some odd and ends torrents, which I later delete after I find the Disc in hardcopy.
As for me, I am am lucky enough to find OST's at the store I go to, as well as some odd and ends torrents, which I later delete after I find the Disc in hardcopy.