Dvd Decrypt

Everybody knows DVDs are Encrypted but I have a lot of DVDs that I Buy.

So I got this Free Program called DVDSmith Movie Backup.

And I want to Decrypt my DVD Main Movie just the VOB Fil and save it to my Hard Drive.

So I start the Program and Click Main Movie and pick a Folder on my DeskTop to Save it to.

Then I Pick how to Decrypt the DVD it has Un Incrypted Encrypted and these 2. are to gather.

I pick these and click start and it does it and gets half way throught and says
This Program Can Only Descrypt To A DVD Or Folder Or Hard Drive.

And this is what I am doing.
Can anybody help me?

This is my DVD I got at a Store and I want to keep the VOB Main Movie on my Hard Drive.

Or did I get the Wrong Program I have Bad Eyes?
Thanks