Within the space of 5 days I contacted the distributor, had returned the card which they checked out and had a replacement card delivered.

Until this point the card had performed very well indeed, with good write speed and stable data storage.

5* rating due to combination of good product and excellent after sales service.

The card is good value but if you can afford the extra cost and your camera can utilise the additional speed of the card then consider a faster card - especially if you're using RAW files.

Due to the large capacity, I certainly never used to fill the card since I upload as I go using a card reader. However, a few months ago I bought a Canon S20 and the capacity is reduced accordingly to roughly 200 maximum resolution (8 million pixels) JPEG files on that. That is still enough for a day's shooting (or weeks/months in most settings!).

I don't use RAW format because of the slow processing times of those files on my PC, so I don't know the capacity or performance for that.

So far I have found the card faultless and plenty fast enough. I generally do not notice the delay in writing to the card, although after taking a run of 10 shots at 5 photos a second, the red light (of the writer) was still flashing when I took the camera from my eye. It nevertheless coped without a sweat.

I noted today that the cards are now selling for just £44 so I am buying another one to take on honeymoon, just in case it is needed!