The file is an optional component found in FitGirl Repacks , a popular site for compressed video game installers. What it does
It is separated from the main game files so users can save bandwidth and disk space if they don't want the music files. fg-optional-bonus-ost.bin
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." The file is an optional component found in
Always ensure you are using the official FitGirl Repacks site to avoid malware, as noted in reports from Back2Gaming . If you didn't download it, you might see
This file contains the game's official soundtrack.
Are you having trouble with a or a "missing file" error?
If you only want to play the game and don't care about having the music files in a separate folder (like MP3 or FLAC), you can skip downloading this file entirely.