Quote:
Originally Posted by booklover6
I believe the class 10 is the problem. What class is the 4GB that you tried? Ereaders tend to do better with a slower speed card.
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I tend to agree with that. There does seem be a lot of evidence that, for reasons at large, a specific card can be problematical in one device but work fine in others, and that Class 10 cards (especially those of larger capacities) are more prone to this than those of a slower speed class.
Other evidence is that device manufacturers also typically remove themselves, in manuals and advice, from any commitment that all cards within specification capacity for the device will work.
Yet more evidence is that many devices will accept cards of capacity larger than that specified for the device, but often only if that is a card of a slower class. One could infer from this that if using cards of the device's maximum specified capacity it is best to stick with slower class cards.
In most uses Class 6 is perfectly adequate, and certainly so for ereader requirements. In order to avoid potential problems I use Class 6 in smart phones (so supporting music, still camera and video) and readers. Of course, if one has the (rare) opportunity to actually test card in the device before purchasing then it would make sense to me get the fastest card that works (and biggest within the device's specification) and budget allows.