If you do a ``ls /drive0/fids'', do you get a huge list of stuff?

No. Just two files: "100" and "101".

It seems strange to me that emplode shows 13 GB of space being used, but I can find no trace of that usage in the command shell, the player software, or through emplode looking for playlists, songs, etc.

Should I try re-copying the songs over again? Should I run diskbuilder on the 40 GB drive and try again from the beginning?

tanstaafl.