If you are pretty computer savy, and happen to have a hack-able DVD player, here is a site that can help:
http://www.videohelp.com/dvdhacks
If not, check the list and see which DVD's are easy to hack and get that one. I have a DVD that can read any region code, found it on eBay (of course!)
Just look for a DVD that is capable of "region 0" (that's a zero). Here is an example:
http://cgi.ebay.com/DVD-6800-5-1-Cha...QQcmdZViewItem
Also, all DVD's on computers are region 0, I believe.