ive heard LOADS of people in the net saying that the Lacie D2 external hard disks fail, from, 360 gb, to the 500gb to the 1.5tb hdd's. Nowhere near as many people reporting the 160gb versions failing. I use my external 160gb lacie all the time, its connected for about 5 hours a day, i use it for backing up dvd's to it, i then defragment it to burn to the external writer. That must cause a wee bit of stress on it. Had it about 6 months, pretty good so far. Its a seagate hdd inside. 135 pounds.