Jonno said:
Ah, that clears that up then - cheers Moth3r.

Though it would be a good idea to put both the original DPL and the 5.1 upmix (as per the other thread) on the same disc to do an easy A/B comparison. The only snag is the combined bitrate - there probably won't be room for high quality video AND high quality stereo AND 5.1.

I wouldn't think that would be necessary. You will probably get a better result from hardware doing the DPL decoding than you will having software doing it, and in the process compressing it.