Ok ive been looking all over and cant find away to do this so I thought I post it here.. Im looking in to buying a SD card for my GPS with maps of japan on it. I found some at (xxx.UUD.info) but you cant copy them to another SD card to use on my wife's and my GPS at the same time. Ive been reading that the maps on the SD are locked to the SD card by the cards ID so when u copy them to the other SD it wont work because each SD has its own ID... some one was saying that there is (or he thought there is) away to copy the SD's ID and make this work. does any one know any thing about this and could maybe help me out.. I kinda sucks that they wont allow me to install in 2 of my own GPS systems. Thanks for the help guys.