It is a Hitachi Deskstar HDD. It is well known for this model off HDD for having many problems. Unfortunatly when my mom bought prebuild computer this drive was in. If I would be building this computers from components I would definitly put WD HDD in it.
I also use mostly WD HDD's. And to be honest in all my time I'm working with computers I olny saw one WD HDD wich died and even this one died becouse of lightning strike.
Segate drives are mostly OK but are much more noisier even from the start.
Fujitsu laptop drives are reliable but quite slow compared to some others. They also tend to be louder than others.

PS: The drive was never used for any hard work (masive data copying or something). Actualy it died while computer was in sleep mode.