It’s your Mac that’s putting these ‘ghost’ files in for its Finder function. The name is the same as the original files except for the ._ and they are 0 kb so they confuse your Fuze. There are applications you can use to remove these or do it manually.
When Mac OSX rips albums, it makes a folder for the Artist with, inside it, a folder for the Album and a folder called MACOSX with those stupid little finder files.
Go into each Artist file and send over the Album, and leave MACOSX on your computer.