I use a no cd/dvd crack for convenience and also to save wear and tear to my discs. Yes it's infringing copyright and as such is illegal,but they are my games and i payed for them so i don't really care.
Call Of Duty 4 dosent require the CD to be in the pc but i agree, its a pain having to find the disc if you want to play most games, especially if you have several games and either the kids put them back in the wrong box or dont even bother, then you have to hunt high and low looking for the thing! Thats of course if the wife hasent already tidied up and put them somewhere safe!
alcohol 120% or alcohol 152% at click here is a program that mimicks a drive and allows you to play a game wqithout the cd ;) if you download the trail verson it's not to hard to get a key to make it the "full version" not that I'm advertisin piracy or any thing of corse. after usin the trail program you will need the disk one more time to copy the files to alcohol after just select what game u whant to play as u need to change the mirror per game as apropiate.