Now a hard drive manufacturer is talking about switching to the super fast solid state drives.

Offering 40GB of storage, the Iomega drive is very small for its capacity, measuring a mere 8.89 x 7.37 x 1.27cm. It weighs just over 99 grams, which means it's unnoticeable in your pocket. The internal drive is a 40GB Hitachi TravelStar C4K40 -- a new form-factor hard drive, measuring a mere 1.8 inches across (a normal notebook hard drive is 2.5in, a desktop drive 3.5) -- and only about 7mm thick.

Capacity? Value for money? Who's got what? Read on to find out who has the best marriage of both.

High-capacity desktop drives have never been so affordable. Darien Graham-Smith puts 23 to the test to find the best

If your PC is lacking storage space then give it some extra room with these four internal hard disks.

Five 200GB platters spinning at 7,200rpm in a 3.5in form factor.

Huge capacity, but not very quiet or good value

Good value and high capacity, but performance is average

Hitachi Global Storage Technologies (GST) has taken the wraps off the world's first 2TB 7,200rpm desktop hard drive..

They're not obsolete yet. Capacity isn't the only saving grace for hard drives, with Hitachi spinning out 7,200 rpm devices.

A decent performer, but it struggles with small files

Blisteringly fast but expensive for the capacity

There are almost as many acronyms for the various standards of DVD as there are companies involved in DVD development.