Actually the other way. Source - I have a master computer with 500 gigs of pictures and music on it, going back to 1998 when digital cameras first started. This computer stays on 24/7 running a cameras system and I can tunnel to it from work. Target - I have a 2TB Western Digital Passport USB drive that will have all this data on it. Right now I'm using their built in software to sync the drive. But when it does a back up, it creates weird folder names before it gets to my data. Meaning, the root of the folder name is different, and the drive letters can be different when I plug the drive in. The goal is to back up my master computer at home, take it to my parents home 300 miles away, and have it sync as a back up in case my house burns down. I want to be able to plug this USB drive into any computer (like a flash drive), and have it sync. Source Computer Folders to Back Up E:\Scans E:\Music E:\My Documents And a few more but this is just an example. Target USB - drive letter can be anything depending on where I plug it in. And the start of the folder names are different. G:\WD Smartware.swstore\TERA\Volume\Scans G:\WD Smartware.swstore\TERA\Volume\Music G:\WD Smartware.swstore\TERA\Volume\My Documents I would create a secret for each folder on the master, then put that secret on each folder name in the USB drive, but the root name of the target folders has stuff in front of it because of the WD backup software. I want to continue using the backup software to back up my drive at home, but still be able to take this drive to my parents and sync certain folders. Therefore, on the target USB drive, the secret would go in Scans, Music, and My Documents. At home I have 2 computers connected through my router. I tried syncing from E on the master to D on the other machine and it didn't work. Only when I made both drive letters the same did it start to work. So I haven't tried plugging in the USB drive into the 2nd machine yet to pretend it's my mom's machine, but that's the goal. To be able to plug this huge USB drive into any computer, set up the secrets, and have it sync.