Quote Originally Posted by rzozaya1969
Probably already posted, but anyway...

My Sony A100 (and I think that most DSLR, well, at least those that the guys at the photo store showed me) has a slot for a Compact Flash memory card (the big one). On the camera there is a CF that has slots to add a MemoryStick Duo.

I bought a MemoryStick and I haven't found any flaws on it. But, which is better if/when I buy a new memory card, to buy a CF card, or another MemoryStick Duo? Which are the advantages/disadvantages of one over the other?

Why is the standard for DSLR a CF card rather than a SD card, as in in P&S cameras?
Compact flash is more popular not that matters much. MemoryStick is only on Sony’s. I would go for whatever gave me the fastest read/write, most storage at the cheapest cost. Without looking I'm guessing that would be compact flash because its not proprietary.