oh wow, this system is a beast.

With DivX, the encoding function is a constant work in progress. You'd have to make sure the firmware on the DVD player is upgradable. 2003's DivX drivers won't play 2006 encoded movies

Important for HD - which you don't care about
HDMI Outputs No
DVI Outputs No

HDMI and DVI are direct digital outputs from the DVD player. This isn't typically found on most DVD players.