This is not about backups, this is about archiving.

For arguments sake lets say I have 2TB 7z file that I would like to archive to tape. I have 4 LTO-5 tapes ( 1.5TB each ). This may be a stupid question but what set up would I need that would allow me to drag and drop those files directly onto those 2 tapes and would automatically split the file accross 2 tapes like so:

------------------
|     Copy 1     |
|     1.5TB      |
------------------
------------------
|     Copy 1     |
|     0.5TB      |
------------------

------------------
|     Copy 2     |
|     1.5TB      |
------------------
------------------
|     Copy 2     |
|     0.5TB      |
------------------

I just want to be able to specify which files go on which tapes as oppose to backups where the tapes just rotate.

Thanks.