I’ve removed your email address from your post to keep you from getting deluged with spam. It is just not a good idea to post it on a forum like this.
Are you trying to copy a commercial dvd? Virtually all of them are encrypted and require special software to decrypt and rip to the hard drive. Which program are you using for this?
If you don’t currently have it, I’d suggest the free section of DVDFab, called DVDFab HD Decrypter. It is free to download and will continue to function even after the trial for the main section of DVDFab expires. Found here: http://www.dvdfab.com/free.htm