It was me. You never sent that $500.00 you promised.
Mine were recorded from a real 3DO. Get it? R.E.A.L. The original $700 unit. Fo' shizzle. Maybe the later models were only in mono or something. I did not modify them. The way I hooked it up was like this: Left audio jack had a cable that went in to the LEFT input on my MiniDisc recorder. Then, in addition to that I had YET ANOTHER CABLE. Yes, it seems like overkill, but you really do need two cables. I plugged that extra cable into the RIGHT output of the 3DO and it went in to the RIGHT input of my MiniDisc player. Also, cursing at Trip Hawkins really helps the sound quality, I find.