How bad is the stereo audio on the Star Trek TNG Blu-rays, aside from it being lossy Dolby Digital instead of lossless or PCM? I don't notice anything much when I watch the BDs in stereo (only just started Season 2 though), but I believe I've read on Trek Core about the stereo having missing/wrong SFX that matches mistakes on the 7.1 tracks, so I assume that the stereo isn't the original audio, but a downmix or new stereo mix done at the same time as the 7.1.

Most of the "Log" LD boxes can be found pretty cheaply in Japan, maybe I'll try synching one of my favorite episodes and see how long it takes me.