Hello, I just bought civilization chronicles, in wich civ4 is on dvd, and I can't start the game becouse of this error. Can someone help me please?

:band: Welcome to CFC :band:
Try any of these:
It is indeed a safedisc issue. That is the game checks whether you have a genuine disc and thinks you don't. This can be due to various reasons:
1) You don't have a genuine disc
2) Your disc has been damaged (sometimes even slight scratches cause this - but usually this problem then turns up intermittently).
3) You are running more then one cd/dvd drive - try switching the one the cd is in.
4) You have a virtual drive installed - some of those even when not in use cause safedisc issues and the only way to get rid of those is to get rid of the virtual drive.
5) Your CD/DVD Drive cannot handle whatever version of SafeDisc Firaxis/Take2 are using - try looking for updated drivers and/or firmware for your drive.
this list is not exhaustive but maybe it helps

PS: @Sabre1 Welcome to CFC


First off: Welcome to CFC :) :band: [party]
SafeDisk is a pain and unfortunately there are situations in which it will simply not work.
That said there are a few more things to try:
update the safedisc driver (http://www.macrovision.com/promolanding/7352.htm)
Also Microsoft has an update for XP that some people may need:
find it here (http://www.microsoft.com/downloads/details.aspx?familyid=eae20f0f-c41c-44fe-84ce-1df707d7a2e9)

Microsoft actually has a pretty exhaustive list of what to do, so please follow this link (http://support.microsoft.com/kb/228985) it lists more than a dozen things to try and some of those you already did while others might be worth a try. Especially running the game in Win2000 compatibility mode and doing a "clean reboot" as described there is worth a try.