Noiser hard drive

Is it normal that hard drive's access (activity) sound is much louder, than in my other drive, that is from same manufacturer, but model is different? Both drives are Seagate Barracuda s-ata "storage" drives. Are some drives/models just louder and that's it? It doesn't make any "failuring" sounds, when it's idle.

Drive has been louder from the beginning. I've got it now about couple of months. Drive seems to be just fine; S.M.A.R.T. info says it's ok, and i also have ran a Seagate's hdd diagnostic tool (SeaTools for Dos) test and it passed it. Also have ran chkdsk and defragged it. Drive contains only video files.

EDIT: Title should be "Loud hard drive".