Other than physical size what are the advantages/disadvantages of Compact Flash cards vs SD, SDHC, SDXC cards? How, if at all, do they affect image quality? The only issue I have with SD cards is the small size and flimsy feel. But if you had one of each card with similar file capacity, write speed, etc... what would be the difference? I don't have a camera that uses both so I can't really compare images from the same sensor. Thanks.