I have to try it but it looks likeĀ running Cygwin on windows should provide the free open source way for me to use Tar to back up to LTO5 tape
http://cygwin.1069669.n5.nabble.com/Quantum-LTO-4-tape-drive-and-Cygwin-1-7-td54235.html
https://www.experts-exchange.com/questions/20832880/Restore-Unix-Tar-Tape-in-Windows.html
https://www.cyberciti.biz/faq/linux-tape-backup-with-mt-and-tar-command-howto/
https://cygwin.com/ml/cygwin/2013-08/msg00340.html
https://cygwin.com/ml/cygwin/2009-10/msg00527.html
Well to make things interesting I’m now considering installing Unbuntu so that I can use Tar to back up these drives as it seems that Tar is really the only option that isn’t proprietary and will still be in use and free to use years from now.