Well lately I have been hearing faint tick-tick sound from my PC cabinet followed by system freeze and restart after a long time. and then on the first screen after restart hard drives are not detected and on the second screen either get "Disk Boot Failure, Insert system disk and press enter" or "Boot from CD/DVD, Invalid system disk, replace the disk and press any key" error messages after which the only thing I can do is switch off the main switch. Can't reinstall windows etc.Discussed this on a lot of forums and everybody said my hard disk are dying and to go get a new one. I was using Samsung SP0802N 80 GB Hard disk so far. Does anyone knows what is the approx warranty period for it. Brought it in july 2004. Went to the samsung site but they are asking for pin or serial No. and I don't know the number. Threw away the box a long time back.And if I have to buy a new hard disk, which one is good in quality and affordable now a days. I live in mumbai, where can i buy the hard disk. And is there a drastic price difference between 80 GB and slightly higher capacity hard disks.