Originally Posted by Wild Rat
Warning! if you download and unzip the archive containing the files whose names contain non Latin characters, then:
1) Unzip the files will have incorrect names
2) Kindle will not see them
3) some files will not delete!
The problem is, that sometimes the ZIP archive contains filenames that use some obscure Windows language-specific encoding. Your Kindle isn't able to find out what encoding Windows uses in your country.
If the filenames are encoded in UTF-8 (the only reasonable standard today), everything's OK.