I'm sorry, I guess I have one more question before purchasing a 32GB SDHC card....there are different "classes" of cards. Does that make a difference to the 7" Pocket Edge? Is Class 4 okay or is higher better? I assume the difference is speed of access? And is SanDisk still the "best" brand of SD cards or does Kingston or other competitors' cards work in the Dualbook? I read some feedback that SanDisk doesn't always disclose the class of their cards now??? Thanks so much for your help! sw