Guide to buying Amazon mp3, ebooks, videos and downloads outside of USA

Update 9 Aug 2012: I found out the common problem is caused by associating a payment method with the shipping address.

This guide will help you bypass Amazon.com geographic restrictions to buy the digital content you want. By digital content, I mean mp3, ebooks, digital movies, video games and other downloads.

This guide is written for anyone who uses Amazon.com outside of USA.