[bivab]

There is no transcoding to PCM. The untouched audio is simply unpacked into separate channels. This would still be considered lossless unless you are doing some type of mixing with this data. LAV Audio and audio renderers can alter PCM tracks. But this can be bypassed with correct configuration (simply ignore the mixing tab in LAV Audio and don't use ReClock's media speed correction and choose WASAPI Exclusive). Then it is lossless.

 Alright, good to know. So it's more decoding/unzipping rather than transcoding?

I tried disabling the Microsoft DTV-DVD decoder using this tutorial, hoping DSPlayer would fallback to LAV Audio, but this resulted in NO audio being played. The MS decoder is no longer present as a filter, but LAV audio neither. I guess I'll have to wait for a DSPlayer update, hoping it's not my machine that's in the wrong here.