I don't know what your talking about, I use an sd 2 and an sdhd4 that I got with a cam I took back.

The cam snaps off pics very fast. I can't imagine needing them any faster. They are almost so fast that if you view them as a slide show it's like watching a video. Any faster and you'll end up with 50 shots of the critter licking it's butt. A couple days and you'll have thousands of pics.

Great cam.