Expandable Snap-Fit trays have been released today 7/29/09. They can be customized to maximize your available space starting at 6 inches to infinity…

They can be ordered at http://mmdesign.com/products/tray-snap-dvd-pro.php

The DVD Pro and HiDef Pro are available as a kit with Snap-Fit trays as well.
Build your own kit at http://mmdesign.com/products/dvd-pro-poly-set.php and http://mmdesign.com/products/hidef-pro-poly-set.php