Hard disk makes noise

[jamshid]

my hard disk is making strange noise now, when ever i run something like firfox , or when i play games, it makes sound, is it normal, should i return it back to seller i still have six months left on garranty,
this is the same sound that it makes, http://www.youtube.com/watch?v=n9obzgmWrlM
i know i have a bad english i hope you undrestand, thanks in advance

 

[cmichael138]

Check here:
http://datacent.com/hard_drive_sounds.php

 

[MidnightDistort]

If the drive is under warranty i'd just replace it.. otherwise i have a few hard drives that make that sound but nothing is wrong with them.