I currently have an external hard drive that is 640GB. It is currently in MS-FAT. I am just now realizing the mistake I made. I want to change it to HFS+ (Mac OS Extended), but it has 155GB of data on it, which, after OSX, is more than my Mac's internal HD space. I only have about 2GB of cloud storage, and no other external storage, besides a 32MB SD. I have a Windows 7 machine, too, but that doesn't support HFS+. I thought of creating a new partition, moving the files, and deleting the ond one, but adding the partition would erase my files. Are there any ideas for how I could do this? I can't justify to myself buying a larger HD just for this. EDIT: I just checked, and about 60% of my HD space is movies I've imported. I'd rather not do this because of the hours and hours it would take to re-rip every DVD with my crappy disk drive, but this is a possibility if there is no other option.