just found the option in the pioneers manual.
in OPTIONS SETTINGS choose DVD-Video in the DVD PLAYBACK MODE.
I bet you will find your dd and dts tracks.
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5 x R&D Audio Monitor 2s
1 x R&D Audio Subwoofer 2
1 x Bryston 4B
2 x Bryston 3B
Denon 4308ci
Oppo 970HD
Belken PureAV PF60