daWallet i know i can install burst on my key(i fact i use a 1TB USB3 as my usb key), thing is i do not want to create a new directory in each computer i will use my usb key with, lets say i have 7 friends that lets me use their computer, this will create a directory in the 7 computer + if i do not want to reload all DB then i have to save them back on my key.