Disklavier

Hello,  have sucessfully moved all of my regular fd collection to a usb drive for my DKC-850.  However, only some of the SmartPianoSoft disks open with RootAripper.  EG, Sinatra and Romanza (Bocelli ) do, but Eagles greatest hits, Ropin the wind Garth brooks dont.  I get a can't read disk message.  Is there some reason rootaripper wont open these although it does open the regular Yamaha Piano soft disks?  I dont have access to an old DOS machine to run the other programs anymore , like DKVutils.

thanks for any help.    Dave