The codec Link on the main website (and linked to in this thread) did not work for me. At least on windows 8. It seemed to fail to install the codec for whatever reason. The Upsided videos also did not work, without a different codec... which I actually happened to find here: http://www.videohelp.com/software/ffdshow
, which did work, and the game actually plays the upsided videos with that codec. somehow.
I do think it is time a "full install" was made, with codec, and game, in one easy installer was made. I just slapped a "install" together for some of my friends, which is just the op2 game, the media files , and that codec all mushed in a zip file with a readme for install this, then install this. but. Maybe someone here knows how to do something better.