Agree Free DVD Audio Ripper (agreeconverter .com) is even uglier than its name, a crumbyware you’d better avoid – and I don’t see any reason why you wouldn’t.
After you install it, ready to try extracting audio from your fine DVD, you face a warning that the program will convert only part of each of your files – and this without even letting you make quality adjustments. Of course everything will be fine if you purchase the commercial version of the (otherwise) free agree audio ripper. No, I don’t agree.
If you still want to try it, here is the link.