At first I was disappointed because it did not have a built in disc drive. I subsequently bought a portable Samsung disc drive, plugged into the usb, it works perfectly. I guess if you have a built in disc drive, if it goes wrong then you are stuck, at least the portable one is replaceable. I only wish Apple would make the back adjustable so that you could lower the screen, I know it is 'tiltable' but that doesn't always do, anyway have found a turntable to put it on and that has cured the problem. It wouldn't have taken Apple much trouble to make the stand with two slots that are adjustable. Until I got the turntable I did find it a very slight nuisance to keep turning it around to access the usb points, have got used to it now. In all I love it. It was hard to forget windows operating system but now I am glad I went over to Apple, Windows was always crashing and giving error messages which were very tiring and time consuming and Windows withdrew support for XP. I would never go back to Windows.