Hi,
1. you want to make your dvd-rom region free?
get you the newest firmware for your dvd-rom
(it gives in the internet - search). (with new firmware you make your dvd-rom region free)
use the firmware on own danger.
2. use dvd-genie (on own danger)
This program allows you to modify the region code for popular software-based DVD players such as Software Cinemaster, PowerDVD, and WinDVD (to name a few). It also allows you to tweak these programs with undocumented features to better fit your system.
DVD Genie also allows you to select which program runs when a DVD disc is inserted into the drive, and contains support for full-screen zooming on widescreen movies with certain players.
PS: sorry for my bad english
mfg Doomsdayer