Firstlly, Let me start with a brief history. Macbook 2009 - Mid Model. 1) Everything was running smoothly, until all **** breaks loose in 2012 and Hard Disk is corrupted (Bad Sectors), it took me lot of visits to apple care, lot of money to get my Data Backed up (Time Machine) etc. Replaced with a brand New Toshiba Hard Disk. Installed Mountian Lion on it. 2) Everything is running smootly for 2 weeks, and then RAM starts giving problem, so i replace the RAM with higher 4 GB total. 3) Everything is running smoothly again for about 2 months, then Macbook started Hanging for 30 seconds - 1 minute randomly and repeatedly. Checked the Console in utilities, Disk Error I/O Kernel. Bit of digging, downloaded Smart Utility from Volaitas. And my Hard Disk which is only 8 months OLD has Bad Sectors. and already Mac has reallocated 8200 Sectors with 72 Bad Sectors Pending. NOTE: I can;t get warranty, as i had broken the case of Toshiba HDD to fit into Macbook, as i had a spare Cased HDD. Please let me know what should i do, it is a HUGE HASSEL. (1****) I have everything backed up on TIME MACHINE (External HDD) so all my 50 GIGs of Pictures and Videos seem to be safe for now. I have original BOOT DVD of Snow Leopard which came with my macbook. Should i buy new HDD and install Snow Leopard Via BOOT DVD??? and then just Restore my 50 GIGS of Ipoto Library??? is it possible. Also i am absoluetly shocked that my Toshiba 500 GB got Bad Sectors so soon, because i also have a 1 TB external Tosbhiba HDD, and its running perfectly, both were same make, similar models, i dunno whats wrong with my MACBOOK. Please help.