Hi guys, I have been given a MBA to repair for a family member. Now a few weeks ago it started having issues, and I quickly recovered all files from it, and reinstalled OSX and all seemed good. Not too long after same issues started occurring. Basically it just failed booting into OSX and hangs on the Apple logo. I've just ran disc utility and its telling me it could not be verified completely, and cant repair disc. Now my only problem is I dont want to fork out $200 for a new HDD for it, for it not to be the problem. I am 99% sure it is the HDD... is what I've encountered pretty much what I think it is? I've just never had a disc fail on a Mac before. The air is one of the earlier models with a HDD not SSD. The disc type is 120GB SAMSUNG HS12UHE. Are there any alternatives to this drive? Also know of any decent places I can get this from that ships to Aust?