GOG version of The Black Mirror > Steam Version of The Black Mirror.
GOG Team member JudasIscariot just confirmed that his Team members fixed the very annoying screeching audio issue that's found in the Steam version of The Black Mirror.
"The screeching sound issue is fixed in our version," JudasIscariot confirmed.[1]
What's also cool is that the GOG version of The Black Mirror includes a number of bonus downloads including two soundtracks, two wallpapers, ten developer interviews, and more.
Sources:
- GOG.com | Game crashes with message "agds.exe has stopped working | JudasIscariot | July 3, 2014