All i can say is my 32gb sandisk ultra (class10) is buggin up, i have to reboot between each tune!!!!
I dont know why one of the bigger forums arent doin a petition on this????
And the two different qualitys of screen glass (mine gets thrown around and is flawless but mostly US users get deep scratches when they baby thier phone.
These are the reasens ill never buy a sammy phone again (that and them changin the HDMI adaptor and bein SO slow with updates)