Over here you can find the official recordings for the talks which were held on the 22c3 congress of 2006. Last years recordings were really informative and I can only recommend them. This year they encoded the files in an "IPod-compatible"; h.264 + aac mix (finally someone using the superior codecs).

btw: yes, I decided to switch my "main language"; to english from now on as far as my blog is concerend… lots of the stuff I do on a daily basis is written in english and so it's only logical to keep it.