As some of you will have noticed, the mixes are saved in a .bz2 file.
This is to prevent that you're able to listen online (so you're forced to save it locally) as the .zip & .gz can open automaticly with Internet explorer (or firefox).
So now you should save the mixes on your PC & unzip them with Winrar (winzip doesn't accept .bz2 files).
Let me know if you still have issues openening the .bz2 mixes
http://www.bazz-x.com/geeklog/article.php?story=20071114143649339