Usually any camera store or currys, argos, comet etc.
Your digital camera's memory card will only work in a PSP if it is a Memory Stick Pro Duo adapter.
How many pictures can a 4.0GB memory stick hold on a 12.0 mega pixel digital camera?
Memory Stick, A later version is the Memory Stick Pro and Memory Stick Pro Duo.
Memory Stick Pro
Memory stick PRO Duo with Adapter
There are several types of memory sticks which to choose from. All cameras need a memory stick in order to store memory, so it is very well needed.
It's the memory card (sometimes called memory stick) that's used to hold the image files.
Sony Cybershot DSC-W7 digital camera.
Depends on the camera manufacturer. SD card, xD card Memory Stick Pro to name a few.
Digital Camera Cards are removable memory storage devices used with digital cameras.
Page 21 of the owners manual indicates the 4GB is the larges stick that the camera can use. However I believe it is talking about the CF memory stick not the Sony memory stick. I purchased a 4G Sony memory stick and the camera refused to recognize it. I do have a 2G Sony stick in the camera that works just fine. I also have a 2G CF stick that has no problem with the camera.
You can put any memory card into any digital camera, no matter the price as long as it fits correctly.