So in theory, that would mean that all of the video and sound "information" on the Blu-Ray disc is not present in the stream?
I don't see how an internet stream can hold a candle to the full on "factory" Blu-Ray disc.
On newer films, the PQ is darn close. Audio is another thing altogether. DD+ is just too lossy for my tastes as compared to DTS MA or Dolby TrueHD from bluray.