Ok, here are a few screenshots comparing the quality of both BD/MKV and AVCHD to the Lossless Source. Unfortunately the bitrate had to be substantially reduced to fit the video, several audio tracks and the insanely large overhead of the m2ts container (1GB!) to a DVD9.
Lossless Source vs. Bluray/MKV @ 15000 Kbit/sec:
Lossless Source vs. AVCHD @ 6500 Kbit/sec: