Maybe, i'll try explaning again.

When you use rsync and Mp3ToFID based on the readme at the MP3toFID site, It says that it will erase all the music and FID's that are currently on your empeg hard drive.

I am wondering is there a way you can back up the Music and FID's on your empeg hard drive so that when you use MP3toFID you can still have your stuff saved somewhere on the empeg hard drive.

I want to use Mp3toFID and rsync to keep my empeg and my pc syncronized, but I still also want to be able to easily go back to using the unit in my car.