[rsync]

"Also, take your pick. If the files aren't organized to a consistent standard"

Actually, that's not true - one alternative to an organizational structure or a database is to actually name the files verbosely, which is what I decided on in 1996 when I ripped my first CD:

Artist Name - Album Name - ## - Track Name - time.wav

For instance:

Ferry, Bryan - Taxi - 03 - Answer Me - 2m46s.wav

This file can now be dropped into place anywhere without losing information, requires no DB and gives you full "metadata" for wav files that don't actually contain metadata.