I have the same camera (Fuji F31fd) as the OP and have been searching the forums for any card readers which would work with just xD memory cards. The suggested multi-card readers would be an OK alternative. But has anyone tested them with xD cards, or just SD and SDHC? The only reason I ask is that all of the xD card readers I've tried have needed too much power, even when they are of the same brand as SD card readers which work fine.