Okay folks of #Books

Going to get serious about organizing my ebooks and audiobooks. Which filename convention do you think is best (for file-based management)? (suggestions?)

Author Last Name, First name, series name, book number, title
eg: Sawyer, Robert J, The Quintaglio Ascension, Book 1, Far-Seer

Series name, book number, title, author name
eg: The Quintaglio Ascension, Book 1, Far-Seer, by Robert J Sawyer

(boosts for reach appreciated)

@WTL
My first inclination was to start with author's lastname but in case of multiple authors that's vague.
Bearing that in mind, I'll say go with book title first, but omit THE.