Try using iconv instead of dos2unix to convert the Unicode character encoding scheme of the files. The gremlins in the text might be something like improperly unpaired UTF-16 surrogate characters. I would expect iconv to handle these anomalies better than dos2unix. (It should at least warn you about them in the default case.)
Just a thought…
UPDATE: Another good tool for diagnosing peculiar and elusive character encoding problems is BabelPad.
In reply to Re^3: Weird file type problems transferring from Windows to Mac OS
by Jim
in thread Weird file type problems transferring from Windows to Mac OS
by agaved
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