Quote:
Originally Posted by Rbneader
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Class 4 cards usually have the best small chunk read/write speeds, but I don't know if that makes a huge difference.
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For running ROM off an SD card, it made a huge difference. I had a lot of force-closes and crashes with class 10 and some class 6 cards, but class 4 works flawlessly. Sandisk class 4 is best.
See
http://forum.xda-developers.com/show....php?t=1005633 for discussion of comparative performance of SD cards of different classes and vendors.