I am looking for a simple portable method to increase the storage of my Macbook. I want something I can basically install and forget that won't protrude or will so minimally. So I am looking for something like one of the following. http://www.amazon.com/Transcend-Jet...=UTF8&qid=1418577776&sr=1-6&keywords=storedge http://smile.amazon.com/SanDisk-Ult...id=1418578912&sr=1-2&keywords=low+profile+usb I plan on using this to store my iTunes or iPhoto library. What I need to know is would either of these drives be fast enough for my iTunes library if I am watching a movie? Thanks in advance for any insight.