Just because you must manually switch to the EX track doesn't mean the disc wasn't produced as advertised!
Sheez...Why doesn't my Scarface disc know my receiver is DTS capable

stupid disc

they should be sued for false advertising!
Are we really getting this lazy. Perhaps we should compress the video and audio tracks on these disc even further, so we have room for a system diagnostic tool that determines what our system is capable of, then have it run some kind of probability analysis, like a coin flip, to determine which settings we actually prefer.
Seriously though, flagging is important
