|Further to what Jefro said above, there is a difference between SD cards and SDHC cards. SD cards maxed out at 2G. The ordinary card reader in a computer would read SD cards quite well. When SDHC cards came on the market, all of that changed. You need a different reader for these cards. These cards are available in 4G, 8G, 16&32G. These readers are available at your local computer store and are relatively inexpensive.|
Hope this helps to clear it up.