In this case, the easy answer is good news: there is no CD with the printed book, the "supplementary mateials" that disclaimer refers to are the downloads you can get from wrox.com:
For books that do have CDs that aren't also downloadable, we're working on a new site to reliably host large files like CDs and DVDs. But those are really rare for us.
Thanks for the question and feel free to ask questions like this here in the forums any time you aren't sure what comes with one of our books.
Associate Publisher, WROX - A Wiley Brand
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