http://www.mrbass.org/dvdrip/ - from this link you will find a very useful bit of software (DVD Decrypter) that will let you rip and decode the contents of the dvd.
Then go to
http://www.autogk.me.uk/ and download the latest version. Again a very nice bit of software that will let you convert .vob files to .avi
If you just want to extract a part of the dvd for conversion you could use
http://www.dvdshrink.org/what.html which basically lets you author your own dvd's and stuff. Not used this much myself but it might help!
These are all free bits of software and very very useful, and they should do the trick cos i'm also very interested to see Top Gears take on the Mi16.