Printed below, you'll find the standard we are proposing, some common questions and answers, and a place for you to submit your comments. All lowercase alphanumeric characters plus underscore and dashes and period. Underscores instead of spaces, and dashes between the required fields. There will be a 64 character limit on the filename. Also an ID3 tag with each song with a minimum of album, title, artist.
Spaces are death to moving files around on the net.
Also, some CD formats don't like spaces. To be applicable in the most number of places, this standard must play to a low common denominator. If some songs don't have an album, then the songname will be interpreted as an album and the device will get confused. And genre is a very subjective term. Also every artist loves to create their own genre to capture their special quality of music which complicates things a bit.