The USB mods are very lame and won't play DVD-Rs and have trouble with those important EA sports games.
I strongly urge you to get the origa chip and have it uinstalled professionally. That plays import originals and DVD-Rs with a single simple swap.
You could take NEO2.2, but that can fry the laser unless you install a capacitor and resistor behind pin 2. The DVD-R process is much more complicated and it won't boot imports originals.
For installer try
http://www.chipinstallation.com/defa...gram&lang=eng#