I have a memory card from an old camera that I have tried over an over to reformat to my new, different camera it wont work memory card is now empty does that mean you can.t reformat old cards to new camera's? I have done it before but not such a lg one this one is 4gb my others are 1gb or smaller I didn't think it would matter. It's brand is pny optima My others are San disk & x digital media Sm pny 512mb thank you very much Renee Lavoie
More aboutformat memeory card
Like you I have routinely reformatted XD and SD cards when moving them to a new camera without issues. I would contact the camera or card maker.
However you may decide it's just simpler to buy a new card given that prices have dropped recently.