Look at this site: ####://www.origachip.com/origachip.htm
With the OrigaChip you can boot the PAL DVD Region X because it boots import originals. That's what I do to boot and swap backup games.

Their UK agent is ####://www.madeiragames.com but I don't know where you live. If it's Italy, you're laughing if you want OrigaChip.

You could also buy US DVDR-X on the web and have it shipped to you.

If you want DVDR-X just to play PAL DVDs, then you should buy the US version. (I've no experience with US PS2 and PAL DVDs).

DVDR-X can't be patched because it has to be booted as a pressed original - that's the only way to boot anything is with a pressed original.