Dropbox has recently made changes to their app & free-tier service offerings which make it unusable for me to reliably sync files I offer on this blog. I no longer recommend Dropbox as a folder-syncing & file-sharing service for individual users, as their focus is shifting to aggressively pursue business clients. I will be moving to another file-syncing and link-sharing service soon. In the meantime, download links on this blog will be broken. I'm seriously looking at both Google Backup & Sync (which uses Google Drive) & pCloud.com as replacements for the Dropbox service.