Re: \immediate\write and encodings problem

> All text is rendered ok, but the problem is that the conversion of 
> non-latin characters by teTeX into something weird like 
> "^^de^^d4^^c5^^ce^^c9^^c5" while writing them into file with \write.

I guess that you are using teTeX-2.0, because teTeX-3.0 processes this
without any problem. The solution to this problem for teTeX-2.0 is to pass
--translate-file=cp8bit, either like this:
  latex --translate-file=cp8bit foo.tex

Or by adding
  %& --translate-file=cp8bit.tcx
to your TeX source (first line) and setting
  parse_first_line = t
in texmf.cnf.

Thomas