One way to do it is to open the DVD with a DVD decrypter program, which can copy the files to your hard drive. You could then burn those files to a blank DVD, if you have a DVD burner, or you could convert those .vob files to a compressed video format, like divx or xvid, and burn those files to a CD Rom.
You might also look for one of those cheap Chinese made DVD players that play all region codes. The Philips DVD642 model that I got at WalMart a couple of years ago now costs less than $50, and it plays both DVDs and CDRs, in .mpg, divx, and xvid formats. I don't know if it plays other video types like .wmv, .mov, etc.
This section below was posted on this board some time ago, but is now buried somewhere in the archives. If you want to find it, select a keyword or two for search, and the appropriate thread should come up. I found it very useful, so I just copy/pasted the text to a document that I saved for my own future reference. I didn't note the author or the name of the thread, but you could find that out, if you want to do the digging. Iit refers to the procedure to change the region code on a computer's DVD drive:
Go to the Control Panel. Open System. Click the Device Manager in the Hardware tab. Open the + for DVD/CD-ROM drives. Right click on the proper drive, and select Properties. Go to the Dvd Region tab and change the Country, which will change the region.
Note that this can be only be done a specified number of times. The number of remaining times that the Region can be changed will be shown in the Caution notes.
cdfreaks.com
***Very Important!!!!!!!***
On my DVD drive, I was given five region changes, total. Changing from NTSC to PAL and back counted as two of those times. If you switch to a different region a third time, you can't switch it back, because that would be the sixth change, and only five are allowed. I had to buy a new DVDR/W drive because I made that mistake. I later found out that, by using DVD Decrypter 3.5.4.0, (no longer being made, but able to be found on the 'net), I didn't have to change the region even once.
If you are trying to see a DVD that has special rights protection software included, changing the region code on the computer should work, but this should be done only as a last resort.