What happens once you've used up all your DVD region changes? Is there a way to reset it? Or are you permanently stuck on the region? Will changing your disk drive fix it, or is it a software thing? Also more specifically, I got my Macbook Pro in America and changed in to the Australian region. I've done a few changes and only have one left. If I reformat my computer, will it change back to the America region and then not allow me to change back to Australia's DVD region? Sorry for the myriad of questions, thank you to anyone who can be of assistance.