I don't speak Russian, but I know good RE work when I see it. The big parts have been black-boxed already - my own console had an Xplorer cartridge running Cae

I don't speak Russian, but I know good RE work when I see it. The big parts have been black-boxed already - my own console had an Xplorer cartridge running Caetla at the time the PS1 was big! - but it'd be nice to see what actually really goes on inside, say, the SPU, or the GPU's actual handling of a few corner cases. PS1 emulators are already very good (indeed, they can even run the specially copy-protected images without any patches now, as I tried a couple of months ago with a couple of rare games), but those last few percent are the hardest. I saw MAME mentioned, and that makes sense, given the attention to detail.