I tried to switch to my new SD card today and it didn't work out. My current card is a SanDisk 16 gb and my new one is a Sansumg Pro 64gb. Here's what I did before I aborted the process. 1: Unmounted current SD card. 2: Put new SD card into phone and format it. 3: Put old SD card into adapter and then plug into desktop computer 4: Connect phone (with new CD card installed) to computer via data cable 5: Located & opened the phone (new SD card) drive on computer 6: Located & opened old SD card (drive F) plugged into computer. 7: Opened drive F (old SD card)...held CTRL button & selected all items 8: Proceeded to copy to new card storage on phone. After doing all of that it told me it would take 10 hours to do this. Obviously I'm not doing something correct if it said it's going to take 10 hours....I don't have that kind of free time. Can anyone please shed a little light on what I am doing wrong or provide me with the correct way to do this. On my current SD card I have over 500 songs and about 700 pics plus whatever files the phone and apps write on it.