I have similar problem. System freezing up after 1-2 days. I want to try to slow it down. Whatever I do in recorded files properties 30fps displayed. Yesterday geovision rep said that in h/w compression mode 30fps is default and cannot be changed. And even more: h/w compression works only when you chose mpeg2 codec! It was a surprise for me since this is not exactly how specs sheet states it.
Dylanthecat, please post pcs you got from geovision again or send them privatively. Somehow they are not visible for me in the forum.