[Ewoud]

I think you will be able to install the 1.1 update if you would mount a stripped down mini image of disc 4. and mount that temporaly in Daemon Tools. If you put that image on the copy dvd, you will be able to install the update even without the original cd's. Maybe you'll have to make a mini-image of every cd, I dont know what the update requires more.

I did read somewhere how to make an image of the cd and how to make a mini-image from it. Look for it in the fileforums in a simsthread somewhere, i cant remember where or what the name of the tool was.

Ofcourse you could also wait to backup your CD sims untill there is released a fixed executable for the 1.1 update.