I have a 4gb sd and had it for a while. yesterday i got a new phone and it came with a 16gb sd card pre installed. at first i was going to use it for something else but this phone records hd videos and in doing so may take much more memory than normal, including that this phone takes mp4 videos. So I want to know a safe way to move all my data, music photos, video etc to the 16gb. I seen some people say drag all the data, do i actually drag ALL FOLDERS, or only certain folders?