if you're using a laptop as your primary means for computing, i suggest you always back up your data in a separate HDD...laptops are mobile devices while hard disk are mechanical in nature thus it is prone to shocks.
tumitingin tingin din ako sa tipidpc ng portable HDD para sa sarili ko kaso puro 3 months warranty lang kahit bnew eh, parang nakakatakot. I need to back up my data sa desktop nmin, nahihirapan na kse ako itago ung mga "collection" ko e, nagu umapaw na, lapit na mapuno hard disk ng desktop ehehe