This is mainly asking in regards to the Acekard 2, but I'll also extend the question for Flash cards in general. If some MicroSD cards of a certain brand are known to work efficiently (such as FMVs, etc), is it safe to assume that other cards of the same brand with more memory will work as well? What about for MicroSDHC versions from the same brand? Eg: 2GB microSD Kingston cards were tested, and seem to work fine. Is it safe to assume that the 4GB microSDHC (class 4) Kingston card would have the same result?