If you have trouble with DMM, use a VPN. It might be worth it to go for paid VPN to get high quality VPN if you use it often enough.
There are also second-hand stores like suruga-ya, Mandarake, Yahoo JP auctions, etc that you can go to for Physicals. Lots of options if you can browse through Japanese websites.
Edit:@Saetron: That's nice, but I'm mainly interested in JP VN's.