Why on earth don´t they encode it higher.
This is a Dual-layer BD 50 Gb disc.
Bullitt is coded DD AC3 2.0 192Kbps

They simply use the DVD mix.
Also The Searchers is the same, BD 50 GB disc, DD AC3 1.0 192Kbps
Ok they would argue a mono mix doesn´t need higher but hey you got plenty of room.
well my rant is over
Cheers
Maggi