You didn't specify the model of your Concord camera, but most of them take SD cards. SD cards are getting a little hard to find, but you should still be able to find them at most department, electronics, and office-supply stores. Check the manual to see whether your camera also can take SDHC cards. SD cards are limited to 2GB or smaller, while SDHC cards go from 4GB to 32GB.
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You didn't specify the model of your Concord camera, but most of them take SD cards. SD cards are getting a little hard to find, but you should still be able to find them at most department, electronics, and office-supply stores. Check the manual to see whether your camera also can take SDHC cards. SD cards are limited to 2GB or smaller, while SDHC cards go from 4GB to 32GB.