Always ensure you are using the official FitGirl Repacks site to avoid malware, as noted in reports from Back2Gaming .
When the installer starts, it usually checks for these .bin files. If you didn't download it, you might see a "missing" warning, which you can safely ignore as long as it's marked "optional." fg-optional-bonus-ost.bin
If you include this file in the same folder as the installer ( setup.exe ), the installer will give you the option to install the soundtrack along with the game. Helpful Tips Always ensure you are using the official FitGirl