Would it be possible to see the videos in more plattforms?

If anyone can convert them I'm happy to host them here. Windows Media Encoder and Windows Movie Maker don't really seem to support MPG export.

Apparently, this component allows for WMV-watching on the Mac:
http://www.microsoft.com/downloads/details.aspx?FamilyId=915D874D-D747-4180-A400-5F06B1B5E559&displaylang=en

Philipp, you might want to try PSP Video 9 (freeware):

http://www.pspvideo9.com

That converts most movie formats – AVI, WMV, MPG, MOV, etc. – into MPEG4 format. (I use this for converting movies for use on my PSP and iPod Video but you can view them in Quicktime too.)