I just got answer from WinRaR tech support.
Last years tar archives tend to use UTF-8 encoding for file names.
WinRAR, beginning from version 5.40, attempts to use UTF-8 for tar first. If conversion from UTF-8 fails, WinRAR switches to ANSI encoding, which is CP1251 for Russian.
As far as I know, 7-Zip also attempts to use UTF-8 for tar first.
If conversion from UTF-8 fails, 7-Zip switches to OEM encoding, which is CP866 for Russian.
There is no reliable way to detect the file name encoding in TAR, so both WinRAR and 7-Zip just take a wild guess. This time the archive was in CP866 encoding, so 7-Zip guess was correct. In case of ANSI encoding WinRAR guess would be correct. Both would be correct for UTF-8 encoding.
Beginning from WinRAR 5.40 it is possible to override the code page selected by WinRAR and specify another code page. Open this archive in WinRAR first, then open "Options/Name encoding" WinRAR menu and select "866 (OEM - Russian)". Then browse or unpack the archive.
This name encoding menu is not available in WinRAR 5.20.
that is correct, by default when a tar is made it attempts to use the system language and turns files into a zip archive thus the encoding is utf-8
quote: "Actually tar doesn't encode/decode filenames at all, It simply copies them out of the filesystem as-is. If your locale is UTF-8-based"
http://superuser.com/questions/60379/how-can-i-create-a-zip-tgz-in-linux-such-that-windows-has-proper-filenames
i'm not sure how hfs sends it commands to tar, but in linux, it is possible to tar and change the encoding
http://www.howtogeek.com/248780/how-to-compress-and-extract-files-using-the-tar-command-on-linux/
in you case you want a different encoding:
http://community.sharpdevelop.net/forums/p/10702/29494.aspx
with 7zip (possible winrar) you would have to open the comand line (cmd/terminal) and run it with certain comand to extract the files you want...
https://sevenzip.osdn.jp/chm/cmdline/syntax.htm
http://community.sharpdevelop.net/forums/p/10702/29494.aspx
?Maybe it can be scripted?...
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