Greetings, 1.) I have a MacBook Air SuperDrive (MB397g/a) and I was thinking if anyone knows if this model will be compatible with the new rMBP or do I really need to get the new one (MD564ZM/A). 2.) I don't really want Apple's SuperDrive, but I still have the need for some sort of means to read/write DVDs now and then, so would an external DVDRW from other companies (samsung, etc) do the job just as well as the superdrive, or will there be problems identifying it? Sorry if the question has been asked/answered before, I tried searching but to no result...Thank you.