The pinout for the AV multi out found on GameSX has an error tho, and that's why I wanted to post this. The new version of the pinout has a note that says, "Someone once said: The L and R audio assignments have been swapped, as this info has been incorrect for n years…
How did I find this out? I made a little test CD that has one track with ONLY the left side and another track with ONLY the right side. Jamisonia told me that most, if not all, CD lens cleaner discs have audio tracks for testing left and right channels. My old lens cleaner disc from the 90's does not, but I guess most newer ones do.
It doesn't matter much, you'll probably NEVER notice if you have it backward. Most stereo imaging in games doesn't really matter what is left and right (just like music). There's the rare occasion in a game that something should come out of the left channel to match an action on the left side of the screen, and vise versa.

