I guess you know why. Let's have a look at what you have replied on the MLVApp thread:
uncompressed is uncompressed and lossless is lossless (compressed).
Oh, thank you very much for your very elaborate answer. Thank you for mentioning that uncompressed is uncompressed because I thought that uncompressed was, guess what... compressed.
I can't tell what MLVRawViewer does
If you can't tell, please don't answer. Do you a favor and don't waste your precious time.
Regarding my question:
Maybe MLVRawViewer just generates the .dng sequence way differently than MLVApp. Is there a visual difference? Guess what, I made a test and there is a subtle one on my waveform (Red and green channels are lifted 1 IRE). Why's that? I don't know, maybe is just my imagination. I'm not sure, that's why I asked the community. There's even a subtle difference between both compressed .dng sequences on the waveform and looks like the difference lays in the saturation (the .dng from MLVApp look more saturated). Or maybe both are the same quality, only they are interpreted differently.
Cheers.