I was using AnyDVD 126.96.36.199, no luck using DVDShrink 188.8.131.52, DVDDecrypter 184.108.40.206, or Nero Recode 220.127.116.11. All programs will only see the main video files, but leave the extras completely untouched and unread. The disk is Region 1.
Interestingly enough, on the disk "label" it is marked as "Rental Only - Not for Resale". Did I buy the wrong set of disks from eBay?