Rails - Jan 2008 - funny characters in file names

def file_tail (file, offset)
56    f=File.new(file)
       f.seek(-offset,IO::SEEK_END)
       f.read
end

def get_tags file
    file_tail(file, 128)
end

using these def to get ID3 data

works well till it encounters this
Äîðîãàÿïðîïàæà.mp3

56 :in ''initialize'' : Invalid argument -
c://///Äîðîãàÿïðîïàæà.mp3
(Errno::EINVAL)
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in addition, the id tags in the files are in english, but i can not
get to them because of the file name.
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