I tried the the one below using a Philips Universal SBC RU 545 (where the magic button would be "1" and "3" pressed at the same time) but the process described below did not work. Anyone an idea on how to remove the region code on that one?
-----
(Region code hack posted by Rasmus Carstensen, July 21 2007:
I used same procedure as freaky-deek in this post: http://www.videohelp.com/dvdhacks/sony-rdr-hx725/6879
It means just any DVD. You do understand that the hack won't work with your remote, only a UEI remote (one-for-all, etc.), right? HERE's the whole list of remotes that will likely work.