Making your DVD player region free is a pretty simple process once you have the codes for your DVD player. Try looking here:
http://www.videohelp.com/dvdhacks
Of course, it is not necessary as the BILLY blu-ray is region free. But don't let the regions stop you from buying a foreing DVD that is not available in the USA. You simply use the DVD player's remote to punch in the right numbers and buttons and VOILA! You can watch any region DVD. I have one DVD player that I have regulated as my "Region Free" player (meaning it is set to Region 0, which means it can play ANY DVD region). Works like a charm! Especially good for foreing TV shows on DVD.