CSS (Content Scramble System) is old hat by now, having been cracked over a year ago, but you may still have a need for it - You should know that early versions of DVD Studio Pro (V1.0 and V1.1) have some issues with CSS (especially since CSS requires you to use a DLT drive to prepare your Master, even if it's only a DVD-5). These issues have caused some errors to be reported from replicators that use the Eclipse software.
Best bet is to upgrade to DVDSP Version 1.2, which solves that problem, and a few others as well (DVD-9 output on DLT, using DDP protocol).
