Loading second disk of Infiltrator

[Yautja]

Hi there,

I´m using the Atari800Win PLus 2.7 emulator. These days, I´ve been playing Infiltrator. After many attempts, managed to land safely the chopper. The matter is that the program asks me to load (flip) the second part of the game. Just tried with different configurations, but all I get is the error message that follows (see the attachment, please).

Hope anyone can gimme a hand with this,

- Y -