I'm currently using my music collection (including song-specific settings and library information) two devices, but the base path to the collection is different (and it's not just a matter of different drive letters). I wonder if "check other drives for missing files" could be extended to arbitrary path, or if a different way of just moving the entire library including song-specific settings to a new root path. If not, I could write an external tool for that, but for that I'd need a specification of the .set format (for xmplay.library I already have code).