Taking Dumps from Tapes

Because this seems to be the right platform for it: I would like to have a function in Magnet Aquire to dump tape content (LTO, DAT, etc). The best would be an evidence file (e01). I know that I can read tapes under Linux using mt and dd. However, I lack a free option for Windows (other than Cygwin, or commercial tool TapeCopy). The best thing would be to be able to write the dump back to tape. Thanks! – René (rene)