BSPeter! You don't know the DTS ???
Then i recommend you to read all of these links:
http://www.dvddemystified.com/dvdfaq.html#1.32 http://www.dvddemystified.com/dvdfaq.html#3.6.2 http://www.dvddemystified.com/dvdfaq.html#3.6.3
Clearly DTS is a LOT better DVD-Audio(for video) format than the worthless AC3!
And YES! THERE IS a Decoder for DTS!!!
Just read it:
http://www.videolan.org/dtsdec.html