New games comes out each day, after buying a game it would require the game CD to be in the drive while playing. It is simple to put it in the drive for the playing course of time, but the back drop here is that the drive wears out due to frequent usage(opening and closing). You may leave the CD inside the drive itself but this makes the CD to loose its life due to the heat produced by the system.
So what are the alternatives? Best option will be cracking the game, but this is ILLEGAL. So try putting an image of the CD and using an image drive mount the image and play. It is also not possible if the CD is copyrighted.In that case try some softwares like ultraiso which copies even copyrighted CDs.