I have a 2 Sony cameras the 85 4mp which is awesome and the dsc 72 which is also great..who cares about proprietary memory? not like you interchange them anyway...I also have a Nikon which is great too but uses the 4 AAA batteries.The Sony battery is like what they use in their camcorders and lasts way longer than he others. The Canon G3 is a honey as well with a similar battery that lasts a long long time. I really like the Nikon 5700 but it costs too much.