Originally Posted by NM
I have certainly noticed that my Fuji S304 writes a 3.2MP image to XD significantly faster than my Panasonic NV-GS400 writes a 4MP still to SD memory. I was not sure if this was the memory speed difference or other differences in the camera - for example the NV-GS400 may not be opimized for writing stills since it is a DV camcorder. But there is a noticable delay with writing to the SD card.
From what I understand, the XD has more data lines, and is optimized for USB2.0
XD is just Smartmedia in a small form factor (I heard)...