Not sure about the replacement but the defective original disc with the lipsynch problems does actually include the 18 minute discussion panel from an earlier release . The only problem is that the menu option to select is has been removed but you can access it by browsing titles on the computer.
The UK Region B locked version is absolutely identical down to the menus , chapters etc . Lipsynch is fine and the panel is included too on the menus. Its cheap so could be a useful stop gap until you get a replacement or if you're multi region it could replace it and you'd have easy access to the panel too.