I'm sure this has been answered before, but I still have questions about preparation for the empeg.

Does the empeg read only the id3 tags? If not, how does the file name work into it? If it requires a specific format for the file names, what is it? All my mp3's have only the song name because I keep them in genre>group>album directories. I'm going to have to rip my collection again anyway, but how do I name them? Thanks ahead.