I suspect a character encoding translation problem. If you're using Windows, you'll need to switch to Chinese mode for the characters to display properly (I don't know how to do this). If you're on a Mac, odds are that the file's tags/filename aren't Unicode, and iTunes for Mac is expecting Unicode characters, so it uses whatever character happens to be there, which is garbage. This I don't have an easy fix for. The easiest method I can think of (if it's the filename, and not the tags inside that are displaying garbage) is to go to the website, look up each character in the filename in the Unicode table, and replacing it with the equivalent Unicode character.