Summary: I used to have a 5400rpm, 80 GB hard drive in my Vista laptop. After a year and a half of new software, and gunking up the hard drive, I had only 10 GB of space left, which made my laptop pretty slow. I popped this 7200rpm, 320 GB hard drive in, and reinstalled from the factory image. WHAT A HUGE DIFFERENCE! No problems at all swapping it out. It boots up in half the time it did when new with the smaller hard drive.
Summary: I upgraded my Dell XPS 1645 HDD with ease. I did a clean install of Windows 7 Pro and everything went well, not a single problem. This thing is fast and very quiet, did not think a 7200 RPM would be this quiet. I have always trusted Western Digital with my data, from external to internal hard drives. Highly recommended!
Summary: Purchased as a replacement drive for a Macbook Pro. Turned out that a cable had failed in the mac so using this as a drive in an external HD video recorder. Great drive, quiet operation which runs cool and fast enough to capture files. Great drive, good capacity and price.
Summary: After purchasing this product 2 years ago, I'm happy to say it is still going strong after changing 2 operation systems. It arrived on time and had many good reviews. Things have moved on since then with solid state etc, but if you're trying to upgrade an old bit of gear, well worth considering. Now available for £46.