The current general release software is available here for download. The file is a .iso CD image that can be saved on to your PC and accessed via a file browser, or burnt onto a CD.
If you’re using Windows 10 or Windows 8, it has ISO mounting built in to your operating system! Just right-click the ISO file and choose Mount. Windows will create a virtual drive for you automatically. It also has the option to “burn disc image”.
The data contains the Embedded Radio software, Portal installer, guides and manuals.