The total size of the tutorial is about 16 GB. However, if you want to download the complete tutorial, make sure that at least 32 GB of disc space is available on your system.
On a Unix or Linux-based system go though the following steps:
The unpack-command will create all necessary directories for you and put the files where they belong.
Information about the file naming convention and the directory structure of the tutorial can be found here.
If you have problems, please report them by email to Manfred Weiss.