The Makers audiobook runs 18.5 hours and is formatted for burning onto 15 CDs. It's read by Bernadette Dunne. I really like Dunne's reading (here's a sample) and RHA's production job is tops. The MP3s are 128K/44KHz.
I get an additional 20 percent on top of my customary royalty if you buy it from me, and you get a book that has no DRM and no crappy "license agreement" requiring you to turn over your firstborn in exchange for the privilege of handing me your hard-earned money.
Right now, sales are only available through PayPal, though I hope that'll change soon. And if this is successful, I hope to add the audio for Little Brother and my forthcoming YA novel, For the Win.