Very disappointed

I own an iMac mid-2010 and my Caviar Black failed in one and half year light use the worst is when i put the serial number in the site it said NO LIMITED WARRANTY-40 this means the 5 years guranteel become 1 year as the iMac for the same disk to force us buy apple extended gurantee(+400euros) oh well  done Western Digital nice customer support 5 years become 1.You were to be number one disk manifacturer for all my past computers but NEVER again.

Hello mate, I can guest that your hard drive came with the Mac, right? So that would make it an OEM hard. Follow the link below to see what that implies. 

http://wdc.custhelp.com/app/answers/detail/a_id/1352/session/L2F2LzEvc25vLzEvdGltZS8xMzM4MTQ4NDQzL3NpZC9ROVFKNWJaaw%3D%3D

Well, another Black Caviar 1 TB drive will cost you 100-150 euros, so in a way, that’s cheaper than the 400 euros you would pay for the extended warranty. The Black Caviars are usually reliable (except for the 500 GB models). You can try again.