I have two different Maxtor HDDs, one is 80G and another is 40G. They never have any problem. I also have an 20G IBM which has been used for 2 years, no problem at all. For the 100G WD I have, it still works OK since September. The 60G WD I got last Fri from BB, it seems OK too. But my girl's 20G WD, it failed after 2 months of use. When I say 2 months, it is not really 2 months coz my girls rarely turned on her PC. It just died after 3 months since the PC was purchased from Dell and Dell refused to replace another. They said the warranty is only 3 months. Blah~ I dunno. Maybe my girl got a lemon?!