Thanks for the head's up.
I normally don't download "public beta" software, but I'm so desperate to solve my -83's DVD-A issue I gave this a try. Still not fixed.
I had contacted Oppo about the issue, but they wanted me to send them my Gaucho DVD-A; for what I paid for it I was hesitant to do that. Since then I found out that disc is also out on SACD, for a reasonable price, and it's on order. When I get it I'll package up my DVD-A (and my CD copy) and send them to Oppo; with the -93 coming out they won't be updating the -83's firmware much longer, if at all. :|