mcfizzle
I do not know if the GS3's have issues with reading cards of this size but I eventually had to remove this card and purchase a Transcend 8GB Class 10 card just to check if it was my phone that was the problem. When I got it I opened the packet, and popped it right in. Recognized, was able to start using, taking shots and video and they immediately saved to the card without the hangup my old class 2 card used to have. After a couple of days I noticed that I would take a shot and the phone would give me an error that it could not save to the SD card. You would have to reboot to fix. When scrolling through the gallery on the SD card it would freeze and the app would crash. I moved what I could, formatted the card but the same thing kept happening.Since installing the new Transcend 8GB card I've had no such issues. Maybe its just MY phone but I think there have been enough complaints from GS3 owners to be a little skeptical about this card on their phones.