Hi Rjh, Yes I do own a Mavica. However, I don't use the memory stick. That's actually a good idea. That would increase the number of images greatly!! Personally I've been plodding along with a pocket full of diskettes. As I recal the cost of a memory stick to be roughly around $80. US. I'm not sure if it is worth it, I think the memory stick can hold roughly up to 5 meg? That sounds low so lets assume 8 meg. Now many images will I be able to save? Usually I can get at least 25 images/disk. So that equals about 200 pictures at least for an additional $80 or I can just bring 10 diskets. Um, I personally wouldn't bite unless I can save around 300. Do you have any other Sony memory stick camera? If you do then by all means give it a try. Bsteph Bsteph