Works great
I have bought a couple cheap ones and there is always an issue. The SanDisk is a little more expensive but completely worth it. I needed a decent sized card and on the quick, since there was an event coming up that I was playing unofficial photographer for. This card came in a couple days before, threw the card in, went to the event, took over 200 shots, and the card was a champ. No issues with formatting, viewing, uploading, or any of that.

Worked well, Used in wedding
I purchased a few of these and they work great. I used them with video mode and 8fps on my 7d and had no problems during the wedding. I think thats all that needs to be said about this.

Works great
Works great on my Nikon D70. Little slow to transfer pics to PC as I always use NEF+JPG (Over 600 images) format but other that that no problem.

fast shipping, nice package A+++
this product came very fast and with the nice box covered. i'm happy with that, i will make more business with this seller.

Write speeds are important.
Write speeds for cards become the most import aspect in Compact Flash cards when laying on the motor drive. At 30 megs per second, this card bogs down when shooting sports at 9 frames per second on my 12 meg Nikon D700 or D300. The buffer in the card will cover the initial bursts, but then lags and stalls as the card processes and stores the data that becomes bottlenecked between the camera and the card. What happens is suddenly, while laying on the motor, the camera stops firing. Then a few frames at a time will fire as space opens up during downloads. All images taken before the clog hits will make it into the card, soon enough (just don't turn the camera OFF while they're inputing). This card is as advertised. It holds 4 gigs. The reason it costs less than other 4 gig cards is the Slower Write (or processing) Speed. Just take note that there are much more expensive cards with the same 4-gig capacity. They are more expensive because their Write Speeds are much quicker, from 133 megs per second, over 300 megs per second, and so forth. Professionals need these speeds primarily when shooting sports and often enough they're on the motor for several seconds. The images get from the camera into the card almost instantaneously, say, 40 at a time, without needing a breather. THAT's what you pay the extra money for. Just an FYI...