I just found out that Humble Bundle has a book bundle for Terry Pratchett’s Discworld. A 39 book bundle that is redeemed through Kobo.com.
Edit: Only available in the US.
https://www.humblebundle.com/books/terry-pratchetts-discworld-harpercollins-books
Nope, theres a .rar file with 61mb.
See https://archive.org/download/discworld-complete-43-books-by-pratchett-terry-z-lib.org
Or https://ia802203.us.archive.org/view_archive.php?archive=/34/items/discworld-complete-43-books-by-pratchett-terry-z-lib.org/Discworld Complete (43 books) by Pratchett Terry (z-lib.org).rar