Learning Swiss German

One of the main difficulties when you are an expat living in the German-speaking part of Switzerland is to understand Swiss German, or "Swytzerdütsch", even if you have already a rather good knowledge of German. I did some research on the Internet and found these 2 teaching methods, that seems to be designed for English-speaking expatriates. I welcome very much a few comments from people who already used the method! The first one is an audio-book (set of book, guide and audio CDs). The other one a software program that transforms your computer into a language laboratory. For example, you can record your pronunciation and compate it afterwards with that of a native speaker!