Warranties cover the drive only they specifically do not cover data stored on them. as stated many times Back Up, Back Up and Back up again I have used many different drives over the years, the oldest I still have is the 10 year old 200Gb Seagate which is the system disc in my desktop I also have 1 320Gb WD & 2 1Tb Seagate internal HDD's. External I have a 1 500Gb Seagate, 1 1Tb WD and 1 2Tb Seagate and will order another one of these next week. I have been lucky over the years never having a HDD die completely the only ones that have eventually died I was able to save the data before failure. I am also watching the prices on SSD,s to replace the system drive with one when the prices get to a reasonable level.
Cheers
Keith.