UDFFindFile

Read a lot about dvd backup, dl'd a lot of stuff. Confused myself to the max with lxdvdrip, dvdbackup, dvdshrink, transcode, streamdvd, dvdauthor, dvdwizard and Lord Knows what else. I think it's time for the pro's: I keep hitting the wall with the UDFFindFile being an undefined symbol. my understanding is that that comes from libdvscss, which i think is properly installed: for example, here is what i see w. dvdbackup: myhomedir:~> dvdbackup -i /dev/hdc -o ~/Documents -M -n testfile libdvdread: Using libdvdcss version 1.2.8 for DVD access dvdbackup: error while loading shared libraries: dvdbackup: undefined symbol: UDFFindFile. Any suggestions please? tia. Dimitris