Leaf River cams use Compact Flash cards and I haven't had any problems with the camera and the cards. I've used a couple different cards.

I've always thought that the Leaf River cams were easy to operate as long as you don't want to change anything, but when I wanted to change something sometimes the buttons didn't work when pushed and that caused confusion when trying to make changes.

No, the LCD screen will not stay on but I have had problems in the past getting my screen to come on. The directions that came with the camera did not turn on the screen. They e-mailed me the correct way to turn on the screen.

I also have gotten generally good battery life with both alkalines and rechargeable batteries.