Filename encoding on XP

[kent sin]

What encoding does the NTFS store the filename?

I got some downloaded files, some with Chinese filename, I can not
backup them to CD because the name is not accepted.

I use walk, then print the filename, there are some ? in it, but some
Chinese characters were display with no problem. I suspect the
encoding of the filename is not unicode. How do I find out more about
this?

-- 
Sin Hang Kin.