I burned a backup of Flight Simulator 2004 fine but when I put in the first cd and click play it asks me to put in cd 4 and restart app. so I do and the same message saying insert disc 4 comes up after I have allready done that im wondering if anyone knows whats going on? Im using alcohol 120% everything eles is ok

That is because you have to use disc 4 to play the game. However there is a patch availible that allows you to load and play the game with out the CDs. You can find this patch at: http://flyawaysimulation.com/downloads-cat-82.html