Originally Posted by rambo47
The speed class has a negligible impact on a BlackBerry. From slowest to fastest, I doubt you'd notice anything>
I beg to differ. I purchased a class 2 16 gb card about a year ago, and replaced a class 4, 4 gb card in my 8300. The amount of time it took to copy things to it took about four times as long! I returned the card. Then after finding a class 6 16 gb card, and putting it into the same phone, and copying back the same data, it took much less time, instead of taking 8 hours to copy the data, it took less than an hour. I know this is probably anecdotal evidence, as I didn't take specific measurements, however it was a very noticeable difference in speed.
I also noticed that when I used one of those usb adapters, that the speed was even faster! So there must be something about the blackberry itself that slows things down a bit, but even so, it does seem to make somewhat of a difference with the speed of the card.