I have a 4 year old camera and a 3 year old MP3 player bought from Aldi. Both accept SD cards, and I bought a 1GB card, hoping to use it with the MP3 player mainly, but neither device will "See" more than 512mb. I had thought that maybe I could use this 512mb on the MP3, and "create" an additional folder with the camera's designated label, and maybe it would "See" this, and allow me to use the other 512mb for photos. I experimented using a 128mb card, and it seemed to work but I'm loathe to try it at the moment with the 1GB card in case it becomes locked up. What do you think?