SanDisk SDCFX3-004G-A31 4 GB Extreme III CompactFlash Card (Retail Package)

Best thing about the CF card is that I never think about it. Plug it into my Canon XTi and take pictures without worrying about the speed or size of the card.

Excellent Flash Card and one I would highly recommend... What do you expect, it's a Sandisk, I trust none other... Purchased it specifically for my Canon 40D...

Memory card was shipped via slow boat but wasn't in a hurry anyway. There was no damage and the product works good.

I have never had a SanDisk go bad on me, in 7 years. I even washed one once and it keeps on ticking. I hear horror stories about other brands, but SanDisk has never failed me. I lost two of my previous CF cards, which is why I bought these.

This card works great with a Cannon XTi. I have no compatability issues. I find this card to be a good value when you consider speed and capacity versus price. You would need a better camera to need a better card.