I'm not keen on using the MS codecs considering what PD said about them causing MP to crash so I'll try LAV video and ffdshow audio (I need ffdshow to mixdown/expand the audio to four speakers).
For best compatibility with the MS DVD Navigator MS decoders are recommend (as the config's text tells that corresponding decoder and navigator combination hould be used). That is the reason why there is no highlighting for the MS DVD Navigator + Cyberlink combo for example.